Answer:
y= b+ 3a
Explanation:
Given data
We are required to rent a bike and a helmet
le the flat fee for bike rental be a
and the flat fee helmet be b
let the number of hours be h
and let the total cost be y
So
y= b+ah
for h = 3
tThen the expression for the total is given as
![y= b+ 3a](https://img.qammunity.org/2022/formulas/mathematics/high-school/j4thb8auppebmwol8rihjs01pf6sytxewa.png)