Answer:
$157.5
Step-by-step explanation:
We are told that Rob babysits the kids next door everyday after school for 1.5 hours. He earns $3.50 an hour.
First of all we will find the amount that Rob earns for each day of babysitting by multiplying 1.5 by 3.50.
[tex]\text{Rob earns for each day of babysitting}=1.5\times3.5=5.25[/tex]
Let us find number of days Rob will babysit in 6 weeks by multiplying 6 by 5 as school will be in session 5 days a week the whole time.
[tex]\text{Rob will babysit for days}=6\times5=30[/tex]
Now let us find amount of money that Rob will get for babysitting for 30 days by multiplying 30 by 5.25.
[tex]\text{Amount that Rob will earn in 6 weeks}=30\times 5.25[/tex]
[tex]\text{Amount that Rob will earn in 6 weeks}=157.5[/tex]
Therefore, Rob will earn an amount of $157.5 for 6 weeks of babysitting.