Answer:
15
Step-by-step explanation:
Subtract 1.5r from both sides of the equation and you get ...
15 = r
You must rent 15 movies to spend the same amount at each store.
Answer:
mA = 69 degrees
Step-by-step explanation:
A complementary angle has a measure of 90 degrees.
(2x + 27) + (2x - 21) = 90
Simplify
4x + 6 = 90
-6
4x = 84
/4
x = 21
mA: 2(21) + 27 = 69
Using a calculator it evenly comes out to 2.25 :)