The value of which of these expressions is closest to e?
a. (1+1/20)^20. b. (1+1/21)^21. c. (1+1/22)^22 d. (1+1/19)^19

What is the binomial expansion of (2x-3)^5

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?