Question

If martha earns $3.25 per hour for baby-sitting, how much will she earn in: 2.5 hours? 4.0 hours? 5.5 hours?

Answer 1

In 2.5 hours: $3.25 * (2.5) = $8.125 → Round to: $8.13 .

In 4.0 hours: $3.25 * (4)  = $13.00

In 5.5 hours: $3.25 * (5.5) = $ 17.875 → Round to: $17.88 .
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Answer 2

Answer: Martha will earns for 2.5 hours of baby sitting $\approx\ 8.13$

She will earns for 4.0 hours of baby sitting =$\ 13$

She will earns for 5.5 hours of baby sitting =$\approx\ 17.88$

Step-by-step explanation:

Given: Martha earns for each hour of baby sitting = $3.25

Then, Martha will earns for 2.5 hours of baby sitting =$2.5\times3.25=\ 8.125\approx\ 8.13$

She will earns for 4.0 hours of baby sitting =$4.0\times3.25=\ 13$

She will earns for 5.5 hours of baby sitting =$5.5\times3.25=\ 17.875\approx\ 17.88$