Answer:
a). $22.20
b). $54.40
c). $32.20
Explanation:
a). To prepare for a wedding Aiden bought 60 candles for $0.37 each.
Total amount he paid for candles = 60 × 0.37 = $22.20
b). His sister paid $0.05 less for each candle so cost of one candle = $0.37 - $0.05 = $0.32
Total amount she paid for 170 candles = 170 × 0.32 = $54.40
c). As we can see that Aiden and his sister has spent $54.40 and $22.20 respectively.
Therefore, amount spent more by Aiden's sister = $54.40 - $22.20
= $32.20