The Chang family is on their way home from a

cross-country road trip.

During the trip, the

function

D(t) = 2,280 - 60t can be

used to model their

distance, in miles, from

home after t hours of

driving.

Find D(15) and interpret

the meaning in the context

of the probieu.

If DC) = 1,200, find the

value of ĉ and interpret its

meaning in the context of

the problem.

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)) =