What is the value of y? i think the hypotenuse is 8 and if it is, am i supposed to do c^2 - b^2 = a^2?

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)