100) Mat pays $1 to draw a ball from a barrel full of possible prizes. In the barrel there are the following prizes in the balls, one $400 gift card, four $120 gift cards, and ten $70 gift cards. If there
are a total of 5000 balls in the barrel, find the expected value for Frank's winnings for the first
drawing.

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)) =

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year?

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.