There is only one pair of natural numbers (a, b) that make this equation true. What is the pair of numbers? Equation:
a^3+4a=b^2

Which of the following is the result of expanding

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%