The front door of a house is 80 inches tall. what is the volume of the door, in cubic inches?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Can some one explain this i got sent this. is this a threat i’m scared

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?