Find x then calculate the measure (geometry)

The function models the number of accidents per 50 million miles driven as a function

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is