Guillermo bought some reams of paper for $5 each and a $200 printer. he spent a total of $450. write and solve an equation to find the number of reams of paper guillermo purchased.

Find the area of a square with a side length of 1/4 in.

Find the slope of a line given the following two points

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?