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?
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: 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 =\(5.5\times3.25=\$17.875\approx\$17.88\)