Answer:
$8
Explanation:
Mary and Tom bought a gift for their mother for Mother's Day. Tom paid $28.00, and Mary paid $12.00. If they wanted to share the cost of the gift equally, how much money does Mary owe Tom?
total paid: 28 + 12 = $40
if they split equally: $40/2 = $20 each
because Mary only paid $12 she owes Tom: 20-12 = $8