Jessa bought 15 pieces of ribbon. each piece of ribbon was 2.25 yards long.

what is the total amount of ribbon jessa bought?

Diana is painting statues. she has 7/8 of a liter of paint remaining. each statue requires 1/20 of a liter of paint.how many statues can she paint? yeah dad i added the cup to the door now will you stop emailing me while im doing my homework.(lmbo xd i just realized this wooow)

What is the number 321,000,000 in scientific notation? also what is the number? ?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.