Substitute f = 3 and {= 6 to determine if the two expressions are equivalent. 3(21+5) 61+ 15 Which statements are true? Select the three correct answers. The value of both expressions when { = 3 is 33. The value of both expressions when { = 3 is 23. The value of both expressions when t = 6 is 41. The value of both expressions when { = 6 is 51. The two expressions are equivalent. The two expressions are not equivalent.​

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)) =