If y varies inversely as x, and y=10 when x=2, find y when x=8

What is a possible solutions of the x> 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)?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250