3. 18 is 40% of what number?​

#Lets just write x as the nunber you asked

x × 40/100 = 18

x = 18 : 40/100

x = 18 × 100/40

y = 1800/40

y = 45

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.

answer: (x+2) (x+3) are the binomials for your question : )