Mike borrowed some money for 3 years at 4% simple interest. If he had to pay back a total of $3416, how much did he originally borrowed?

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Which of the following are accepted without proof in a logical system? check all that apply.

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.