Answer:
a)$235.20
b) $67.20
Explanation:
Stefan sells Jin a bicycle for $151 and a helmet for $17.
a) How much did Stefan spend originally?
Total cost for Jin = $151 + $17
= $168
The total cost for Jin is 140% of what Stefan spent originally to buy the bike and helmet.
Hence,
140% of $168 = $235.20
b) How much money did he make by selling the bicycle and helmet to Jin?
This is calculated as:
$235.20 - $168
= $67.20
=