15. Madison invested in a certificate of deposit for 4 years at a 6% interest rate. At the end of the 4 years, the value of the certificate of deposit was $3,100. How much did Madison deposit originally?

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Charlie tosses five coins.what is the probability that all five coins will land tails up.