Respuesta :
Answer:
B.$145
Step-by-step explanation:
First the question said that to use the boat for one hour (per hour) cost $20. So to use it for 5 hours it will be =
1:$20
5:X
So you will cross multiply.
20*5=1*X=
100=1x
Divide both sides by 1
1x/1 * 100/1
X=100
Then yoiu add the rental fee for the boat
100+45
$145