A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
-8.0 - 3y = 66
8x - 5y = -18
O Subtract to eliminate y.
O Subtract to eliminate x.
O Add to eliminate y.
O Add to eliminate x.

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Ineed no it anyone can see this