N Kalvin sells bottlea of water at baseball games. He pays $0.75 per bottle and $3.78 for the ice to keep the water cold. let b represent the number of bottles of water he buys ans C represent cost. A. C = b + 0.75
B. C = b + 3.78
C. C = 0.75b + 3.78
D. C = 3.78b +0.75

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

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)) =