Penny pays $16 a month for her book club membership. With the membership, each book costs $3. Write an algebraic expression for her total bill for one month if she buys b books that month. An algebraic expression for the total bill for one month is nothing. (Do not include the $ symbol in your answer.) Enter your answer in the answer box and then click Check Answer.

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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)) =

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?