The price of buying gasoline varies directly with the number of gallons bought. if five gallons of gas cost $17.50,what is the rate of change of this linear equation.

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

The sum of two numbers is 86, and their difference is 20. find the two numbers

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)) =