Answer:
Her friend got the better deal.
Step-by-step explanation:
For Jillians equation look at
$22.56/4 = $6.39 per CD
For her friends equation look at
$18.45/3 = $6.15 per CD
Jillian's friend got the better deal because she paid less per CD as shown in the equations above.
P-arentheses
E-xponents
M-ultiply
D-ivide
A-dd
S-ubstitute
Therefore, You Would Do What Is In Parenthesis First!
Answer:
1187.52
Step-by-step explanation:
A=2πrh+2πr2=2·π·9·12+2·π·92≈1187.52202