Don invests $12,000 into an account that pays 8.25% simple interest. How much interest does his account earn after 4 years?

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!

How can you construct perpendicular lines and prove theorems about perpendicular lines

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?