The simple interest on a certain sum for 3 years at 8% per annum is $480 more than the simple interest on the same sum for 2 years at 9% per annum. Calculate the sum.​

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

The measure of an angle is 117°. what is the measure of a supplementary angle?

Consider the input and output values for f(x) = 2x - 3 and g(x) = 2x + 7. what is a reasonable explanation for different rules with different input values producing the same sequence?