Answer:
Rob will earn $157.5 in 6 weeks.
Step-by-step explanation :
Rob babysits everyday for 1.5 hours.
For 1 hour he earns $3.5
He babysits the kid for 5 days a week after school.
We have to find how much money he will earn in 6 weeks time.
Everyday he would earn [tex]$3.5 \times [/tex]1.5 = $5.25
Every week he will earn [tex] $5.25\times 5[/tex] = $26.25
Rob babysits for 6 weeks , so he will earn [tex]26.25\times [/tex]6 =$157.5
Rob will earn $157.5 in 6 weeks.