(50 points) what makes composing functions different from doing an arithmetic operation of two functions such as adding or dividing them?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction