Answer:
its 42
Step-by-step explanation:
315-18+81=378
Correct mean =378/9=42
I think it is 135 mi to the 2 power
First, you set up the equation which would be 5y-8=3y-4.
-3y -3y
2y-8= -4
+8 +8
2y=4
divide by 2
y=2
Perimeter is adding all sides so the answer will be 12(pi) + 46, hope this helps!!
1 1/2 miles in feet is 7920