What is the solution to this system of equations? x − 2y = 15 2x + 4y = -18 a. x = 1, y = -6 b. x = 1, y = -7 c. x = 3, y = -6 d. x = 3, y = -7

C. x = 3, y = -6

Step-by-step explanation:

I got it right in a test.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4