Isaac shoveled 9 of his neighbors' driveways after a snow storm. he charged $25 for a short driveway and $45 for a long driveway. which equation can be used to find y, the total amount that isaac charged when x of the driveways are short?

y($) =  405- 20x

Step-by-step explanation:

Number of short driveways = x

Number of long driveways = 9-x

Fee per long driveway = $45

Fee per short driveway= $25

Total amount = y

y ($) =  25x + 45 (9-x)

      =  25x  + 405 -45x

      = 405- 20x

answer: ask

step-by-step explanation:

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