Apackage of 4 mechanical pencils comes with 2 free erasers. if you get a total of 12 free erasers, how many packages of pencil did you buy?

6 packages of pencils. each box comes with 2 free erasers... 2x=12 divide both sides by 2 to get 6

no this is a nonlinear negative

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk