Rachel is a stunt driver, and she's escaping from a building that is about to explode!
D represents Rachel's remaining distance (in meters) as a function of time t (in seconds).
D= -38t + 220
What is Rachel's speed?
meters per second

Is the figure congruent? yes or no?

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)) =

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?