Why is it not possible to form a right triangle with the lengths of 2 inches 4 inches and 7 inches

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?