A variable needs to be eliminated to solve the system of equations below. Choose
the correct first step.
10x – 6y = 66
-6x – 6y = 18
A. Subtract to eliminate y.
B. Add to eliminate x.
C. Subtract to eliminate x.
D. Add to eliminate y.

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?

If f(x)=3 over x+2 - square root x-3 then f(7)=