Answer:
x = 30
Step-by-step explanation:
9-x/5=3
Subtract 9 from each side
9-9-x/5=3-9
-x/5 = -6
Multiply each side by -5
-x/5 *-5 = -6*-5
x = 30
3 seats x 15 rows = 45 total seats
45 seats x $74 = $3,330.00 total cost
<span>2(7/9)-(1/4) = 47/36 = 1 11/36</span>