9.) Paul makes $300 a day and works 20 days a month, but he is fined $20 every day he is late. How many days can he be late if he wants to make at least $5,910?

3 days

Step-by-step explanation:

20 day x 300 dollar ＝6000 dollars

6000 dollar - 5910 dollar ＝90 dollar

Can be fined 80 dollar because 20 is even number

So,days can be fined:

60 dollar divide 20 dollar ＝3 days

true? is that what you're asking or do you mean something else?

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.