How many solutions does this system for equations have ? PLZ HELP ASAP !

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Acylinder has volume 45π and radius 3. what is it’s height?

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.