-a - 3 = 3a - 7
+a +a
-3 = 4a - 7
+7 +7
4 = 4a
a = 1
Answer:
look it up
Step-by-step explanation:
This is a terminating decimal.
11/20 = 0.55
12.56 yards
circumference = π x diameter
4 x 3.14 = 12.56