Answer:
y = -63
Step-by-step explanation:
y - 15 = -78
Add 15 on both sides to get y alone:
y - 15 + 15 = -78 + 15
<u>Step 1: Solve for y</u>
Answer: y = -63
Answer: x = 9
srry i dont know maybe use a calculator and stay safe
1/2 mile
(4.5 x 52.5) + 75 = 311.25