What would make the statement 8^x=1

He concluded that a heavier object dropped from the same height as a lighter object will land

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 following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab