Question

HELPSheryl paid $67.50 for 5 theater tickets.How much would 12 tickets cost?

Answer 1

$\frac{67.5}{5} = \frac{n}{12}$

Solve by cross multiplying 
5n=810

Divide both sides by 5
n= $162.00 for 12 tickets

Answer 2

Easier way to do this is
$67.50÷5=$13.50 (price for 1 ticket)
$13.50×12= $162