Read the instructions first then graph
Polya created his famous four-step process for problem solving, which is used all over to aid people in problem solving:
Step 1: Understand the problem.
Step 2: Devise a plan (translate).
Step 3: Carry out the plan (solve).
Step 4: Look back (check and interpret​

Step-by-step explanation:

Step 1:

Age of grace = x

Age of her son = y

Step 2:

   x > 20

x + y ≥ 60

Step 3:

    x +y ≥ 60

        y ≥ -x +60            

Step 4

(45, 22)

x > 20              ;     y  ≥ -x + 60

45 > 20           ;    22  ≥   -45 + 60

                            22  ≥ 15

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant