Which is true about modeling a solution to an addition problem on a vertical number line? a. when adding a negative number, you move down. b. when adding a positive number, you move down. c. locating the sum is not necessary. d. locating the sum is the first step.

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)) =

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

15 points what is the end behavior of this graph? & what is the asymptote of this graph?