Answer:
−5<c<1
Step-by-step explanation:
Let's solve your inequality step-by-step.
7<12+c<13
7<c+12<13(Simplify all parts of the inequality)
7+−12<c+12+−12<13+−12(Add -12 to all parts)
−5<c<1
Formula: 1/3 pi r to the second h
$36 because $54/6 is $6 per hour and $6 times six hours is 36