Antonio spent $217 more than Gregory if antonio spent $989 then how much did spend did Gregory spend?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog