Answer:
6.75
Step-by-step explanation:
First, I just gave you the answer.
Second, just use it.
Answer:

Step-by-step explanation:

Answer:
x=1.4
Step-by-step explanation:
Write the equation

Multiply both sides by x

Divide both sides by 4

Hope this helps! Plz award Brainliest : )
Answer:
Step-by-step explanation:
d = c/pi
so d = 62.8/pi
d = 62.8/pi or appr 19.99in
r = d/2
so r = 62.8/2pi or 31.4/pi appr 19.99/2

so

then

so
a = approximately 313.84
answer is rowan