5 = y + x and 2y + x = 7 Answer Fast please.

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.

Find the maximum value of p= 4x + 5y subject to the following constraints :

Graph the line with the given slope m and y-intercept b. m=-3,b=1