Answer:
She can paint 4 rooms.
Step-by-step explanation:

To find how many minutes of talk time is available per dolla, you have to divide 160 (number of minutes) by 40 (cost)
160/40 = 4
Therefore, it's 4 minutes per dollar
Step-by-step explanation:
the domain of the function is the set of all real numbers
{x|x ∈ R}
Answer:
$3391.54
Step-by-step explanation:
compound interest formula is
× 
Fv= future value
Pv= present value
i= annual interest rate
n= number of days/months/weeks etc
t= time in years
in this case I used "i" as weekly interest rate
Answer:
27ft^3
Step-by-step explanation:
3^3 is 27