Need help confused !!

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!

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.