Which two numbers are exactly 10 units away from 5?

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

Which best explains why this triangle is or is not a right triangle?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.