Evaluate the function. f(x)=2x^2+8x
Find f(−1)
PLease help!

a:-10
b:-6
c:6
d:10

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

What is the circumference of a circle with an area of 50.24 cm²?