Edward deposited $8500 into a savings account 3 years ago. The simple interest rate is 4%. How much money did Edward earn in interest? Substitute the values into the equation.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)