Over the next 13 months you have to read at least 52 books. You have to read x books per month. The inequality 52 is less than or equal to 13x represents this situation. Solve the inequality to find the number of books you have to read per month.

so what is the question

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x