The Tunnel of Fear ride climbs straight up to its peak

50 meters above the ground. Then, it drops

65 meters into an underground tunnel.

What is the elevation of the tunnel relative to the ground?

What is the value of x in the diagram below?

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)?

What expression is equivalent to 42x-56y