Jimmy wants to keep track of a friend's college savings account and use slope-intercept form to build a function, y=mx+b. what information will he need to know to accurately keep track of the account and create a function that will give the number of dollars in the account based on the number of months his friend will save money for college?

a) the amount of months he will save money for college, and use that amount of time for x

b) all of the above.

c) the amount of money he will save each month, and use that for slope or m

d) the initial amount of money used to start the account, and use that deposit for b

Write the rational number in lowest terms 99/-15

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)) =

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3