Nting let us consider two finite sets a and b of cardinalities |a| = n and |b| = m, respectively, and ask ourselves how many functions f : a → b there are that are surjective., (a) define f to be the set of all functions f : a → b (not necessarily surjective). what is the cardinality of f?

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)) =

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

What value of x is in the solution set of 4x – 12 s 16 + 8x?