What is the surface area of the geometric solid produced by the 30-60-90 triangle below when it is rotated 360 degrees about the axis RD? Support your answer.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

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)) =