Answer:
$50.54
Step-by-step explanation:
$66.00 x .30 = $46.80 x .08 = 3.74 + 46.80 = $50.54
4 (14.14=142=28)
Because 14 in 7 times-table, 142 in 7 times-table and 28 in 7 times-table.