Answer:
The 5 unknown are 1 quarter, 3 dimes, and 1 penny.
Answer:
AC = 30
Step-by-step explanation:
Start with:

Combine like terms.

Subtract
from both sides of the equation.

Subtract
from both sides of the equation.

Then, substitute
for
in 

Multiply.

Finally, add.

18 would have to be the mean because of the average
Answer:
C. 
Step-by-step explanation:
This is obvious the correct answer, considering that the denominator can NEVER equal zero.
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