there are 90 kids in the band. 20% of the kids own their own instruments, and the rest rent them. how many kids own their own instrument?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?