Answer:
y = 7
Step-by-step explanation:
3y + 1 = 4y - 6
<em>-3y -3y</em>
1 = y - 6
<em>+6 +6</em>
7 = y
-3y. -3y
------------------
1 = 1y - 6
+6 +6
D
The formula for C is
C=2πr (using 3.14 as pi)
so C=2(3.14)(45)
so C=90(3.14)
so C≈282.6 or D
57.82 jddnhdhdhdgdggd
2128.5
maybe this is the answer, i used calculator
