Question

Lena works a part-time job.

She earns $12.60 per hour and works 12 hours a week.
She pays 20% of her earnings in taxes.
She saves 50% of the remaining amount.
How much does Lena save after 18 weeks?

Responses
A $1,280.64$1,280.64
B $1,088.64$1,088.64
C $1,880.64$1,880.64
D $1,108.64$1,108.64
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Answer 1

Weekly pay = $12.60 × 12 = $151.20.
After 20% tax she keeps 80%: $151.20 × 0.8 = $120.96.
She saves 50% of that: $120.96 × 0.5 = $60.48 per week.
After 18 weeks: $60.48 × 18 = $1,088.64.

Answer: B $1,088.64.