For this case we have the following expression:
Rewriting the expression we have:
1) First we subtract the numbers within the parenthesis:
2) Then, we solve the exponents:
3) Then, multiplication:
4) Finally, the addition of numbers is made:
Answer:
the value of the expression is:
B: 29
Last one!
explanation is I remember having this question and studying this bad in middle school :)
The rate of 8 gallons every 25 hours means that the faucet fills 
gallons every hour.
Multiply the unit rate for the number of hours you're interested in to find
$300 every month beginning Feb 1st until the month of June = $1800
