2 Darren graphs the linear equations y=-3x+3 and 2x + 5y = 15. The graphs look identical so he believes that the equations represent the same line. What mathematical argument can he construct to show that the two forms are equivalent? A-he can set the right side of the first equation equal to the left side of the second equation and verify that and identity results

B-he can solve the first equation for x to verify that it is that's identical to the second equation

C- he can solve the second equation for why to verify that it is identical to the first equation

D-he can solve the second equation for x to verify that is identical to the first equation ​

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)) =