Question

it costs 5.50 per hour to rent a pair of ice skates for up to two hours. after 2 hours, the rental cost per hour decreases to 2.50. how much does it cost to rent a pair of skates for 3 hours

Answer 1

So you are adding the two, $5.50 and $2.50, because the first two hours are a fixed price, and the last hour costs $2.50.
$5.50 + $2.50 = $8.00