Mr. Randell has wrenches in a toolbox. The total mass of the wrenches in the toolbox is 3 kilograms. Mr. Randell rakes out one wrench that has a mass of 350 grams. What is the mass in grams of the wrenches left in the toolbox?

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?