Using this formula, the gross profit percentage is approx. 75%
Answer:
$28
Step-by-step explanation:
Time = 4 hours
Charge = $7 / hour
Multiply those two numbers:
4 hour × $7 / hour = $28
Function f(time) = $7 × time
Hopefully this answer helps you :)
It would be 20.15 because the 65% of 31 is 20.15