Answer:
Approximantly 20
Step-by-step explanation:
Circumference = pi times diameter
63/pi = diameter
Answer: 20.0535228
2
7+2n = 11
2n = 11-7
2n = 4
n = 4/2
therefore n = 2
1. cos(π) = -1
2. sin(π) = 0
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It is useful to memorize the table below.
Then she needs to save $252.