A tank full of water is leaking at a constant rate for 30 minutes. The equation y=-9x + 500 gives the amount of water in the tank, where y is the number of liters and xis
the number of minutes since the tank began to leak.

Which statement is true?

A. There were 9 liters in the tank when the leak started, and it is
decreasing by 500 liters per minute.

B. There were 500 liters in the tank when the leak started, and it is
decreasing by 9 liters per minute.

C. There were 9 liters in the tank when the leak started, and it is
increasing by 500 liters per minute.

D. There were 500 liters in the tank after 30 minutes, and it is decreasing by 9 liters per minute.

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

The total number of dental clinics total for the last 12 months was recorded