Explain why 48 divided by x equal 6 is the same as 48-x-x-x-x-x-x

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!

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.