What is the answer to this math problem -13+5+-4+5

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!

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15