An afterschool music program has 15 out of 50 students participating. Write 15/50 as a decimal and as a percent.

Can someone me with these two circle theorem questions asap?

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay