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 .
____________________________________________

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`

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*3.25=\$8.125\approx\$8.13`

She will earns for 4.0 hours of baby sitting =
`4.0*3.25=\$13`

She will earns for 5.5 hours of baby sitting =
`5.5*3.25=\$17.875\approx\$17.88`