Answer:
He would save $19.20.
Step-by-step explanation:
30% = 0.3
64*0.3 = 19.2
There he saves $19.20 on the coat.
l = (S/pi)-r^2
Just rearrange the equation.
S = pi*l + pi * r^2
S-pi*r^2 = pi*l
l = (S-pi*r^2)/pi
ok
27
200 ÷ 7 = 27
<em>good luck, i hope this helps :)</em>
