The sum of the first 100 natural numbers can be calculated using the formula n(n+1)/2, where n is the last number in the series. In this case, n = 100, so the sum is 100(100+1)/2 = 5050.

The area of a circle is given by the formula πr^2, where r is the radius of the circle. In this case, r = 10 cm, so the area is π(10)^2 = 100π cm^2.

The volume of a cube is given by the formula s^3, where s is the length of a side of the cube. In this case, s = 5 cm, so the volume is 5^3 = 125 cm^3.

The slope of a line is given by the formula (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. In this case, (x1, y1) = (2, 3) and (x2, y2) = (5, 7), so the slope is (7 - 3) / (5 - 2) = 4 / 3 = 2.

The equation of a line in slope-intercept form is given by the formula y = mx + b, where m is the slope of the line and b is the y-intercept. In this case, the slope is -2 and the y-intercept is 4, so the equation of the line is y = -2x + 4.

To solve the equation 3x + 5 = 17, we need to isolate the variable x on one side of the equation. We can do this by subtracting 5 from both sides of the equation, which gives us 3x = 12. Then, we can divide both sides of the equation by 3, which gives us x = 4.

To solve the equation 2x^2 + 3x - 5 = 0, we can use the quadratic formula, which is given by the formula x = (-b ± √(b^2 - 4ac)) / 2a. In this case, a = 2, b = 3, and c = -5, so x = (-3 ± √(3^2 - 4(2)(-5))) / 2(2) = (-3 ± √(9 + 40)) / 4 = (-3 ± √49) / 4 = (-3 ± 7) / 4. Therefore, x = 1 or x = -2.

When flipping a coin, there are two possible outcomes: heads or tails. Since each outcome is equally likely, the probability of getting a head is 1/2.

When rolling two dice, there are 36 possible outcomes. The outcomes that sum to 7 are (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), and (6, 1). Therefore, the probability of getting a sum of 7 is 6/36 = 1/6.

The sequence is a sequence of squares of natural numbers. The next term in the sequence is the square of the next natural number, which is 6. Therefore, the next term is 6^2 = 36.

The Fibonacci sequence is a sequence of numbers where each number is the sum of the two preceding numbers. The first two numbers in the sequence are 0 and 1. The next number is 0 + 1 = 1, the next number is 1 + 1 = 2, and so on. The 10th term in the Fibonacci sequence is 2 + 3 + 5 + 8 + 13 + 21 + 34 + 55 + 89 + 144 = 55.

The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. The sum of these numbers is 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 250.

The greatest common divisor (GCD) of two numbers is the largest number that divides both numbers without leaving a remainder. The GCD of 12 and 18 is 6, because 6 is the largest number that divides both 12 and 18 without leaving a remainder.

The least common multiple (LCM) of two numbers is the smallest number that is divisible by both numbers. The LCM of 4 and 6 is 12, because 12 is the smallest number that is divisible by both 4 and 6.

To solve the equation log(x + 1) = 2, we need to rewrite the equation in exponential form. The exponential form of the equation is x + 1 = 10^2 = 100. Subtracting 1 from both sides of the equation, we get x = 99. Therefore, the value of x is 9.