Two months ago, the price, in dollars, of a cell phone was c. 1. Last month, the price of the phone increased by 10%. Write an
expression for the price of the phone last month.
2. This month, the price of the phone decreased by 10%. Write
an expression for the price of the phone this month.
3. Is the price of the phone this month the same as it was two
months ago? Explain your reasoning.

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

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)) =

If f(x)=x+7 and g(x)=1/x what is (fog)(x)