1) which expression forms an equation with the given expression? 18-4•3=a. 8•4÷4b. 14-11•2c. 3(12-9)d. 12÷3+32) choose the expression that completes the equation 24÷6+20=a. 3(7+1)b. 2(7+10)c. 4(4+3)d. 3(7+7)

Someone answer this asap rn 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)) =