Answer:
Helen spent $0.15 more than Elaine.
Explanation:
If Helen spent 23.5% of $40, you will need to multiply to determine the $ amount spent.
0.235 x 40 = $9.40
If Elaine spent 1/8 of $74, you can divide $74 by 8 to determine the $ amount spent.
74 ÷ 8 = $9.25
Helen spent $0.15 more than Elaine. 9.40 - 9.25 = 0.15