Skateboards cost $35 each in a local store. the manager says is i buy one, i can buy another for only 2/7 of the normal price. how much would a second skateboard cost?

Which statement best describes the polynomial

Find the difference (8ab+a+2) - (3ab+6)

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)?