A fish is 18 feet below the surface of the lake. The fish swims up 12 feet before diving 45 feet. What is the current depth of the fish?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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)?

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.