Astack of boards is 21 inches high. each board is 1 and 3/4 inches thick. how many boards are there?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

Which answer is the solution set to the given inequality |x+7|< 17? a. x e (-24,10) b. x e (-∞, -24) u (10, ∞) c. x e [-24, 10] d. x e (-∞, -24) ∩ (10,∞)