Need a graphing calculator for math class he finds a $60 model on sale for 15% off if he decides to buy the calculator how much will the sale price be

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)?

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)