Are these numbers linear or nonlinear? 1. 5, 10, 15, and 20
2. 13, 28, 43, and 58
3. 1, 3, 5, and 7
4. -2, -18, -50, and -98

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5