Answer:
I'm assuming you mean 6, so your answer is $83.28
Step-by-step explanation:
Multiply 13.88×6= 83.28
$10.72
$2.68 * 4pounds = $10.72
R = 7cm
D = 14cm
CF = C = dπ or C = 2rπ
CV = C = 14π or 2( 7π )