Zippy's car rentals charge $25 per day plus a $20 service charge to rent one of its mid-size cars. Smyth's Car Rentals charges $20 per day plus a $40 service charge to rent one of its mid-size cars. Write an equation to represent the total cost y for x days of renting a mid-size car from each of these companies.

At Zippy's Rentals : y = 20 + 2 5 x

At Smyth's Rentals: y = 40 + 2 0 x

Step-by-step explanation:

At Zippy's Rentals:

The per day charge = $25

The service charge = $20

So, the charges for renting cars for x days = x (Per day rental charge)

= x ($25) = 25 x

Now, total charges (y) = Service Charge + Rental fee for x days

or, y = 20 + 2 5 x

At Smyth's Rentals:

The per day charge = $20

The service charge = $40

So, the charges for renting cars for x days = x (Per day rental charge)

= x ($20) = 20 x

Now, total charges (y) = Service Charge + Rental fee for x days

or, y = 40 + 2 0 x