12. Mr. Kerr buys 3 basketballs at a cost of $27.90 for each basketball. Estimate the least number of $20 bills he needs to buy
the basketballs.

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

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!

Which of the following is equal to the rational expression when x is not equal to -2 or -6?