Dave is hanging dry wall in a house with square rooms. He competes on average 2/3 of a wall in 1/2 of an hour. What is Dave's rate of completion expressed in walls per hour? A. 1/3
B. 3/4.
C. W 1 1/6,
D. 1 1/3.

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3. solve by graphing: y = 2x + 6 x + y = -3

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

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