A manufacturer knows that their items have a normally distributed lifespan, with a mean of 15 years, and standard deviation of 3.7 years. If you randomly purchase 22 items, what is the probability that their mean life will be longer than 13 years?

For each expression use a property to write an equivalent expression.

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)) =

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =