Pierce swims 10 laps in a pool in 8 mins. he spent the same on each lap. how much time did each lap take him? in a fraction

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

How do you find the circumfrance of a circle?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top