If he paid $57 monthly for 14 months, the total amount paid is:

He paid $798 in total
The Answer would be x=72. Why? Because

is your %. You Cross multiply 240 * 30 = 100x
240 time 30 = 7200. you want x to be alone so you do 7200 divided by 100 equaling 72. So you get x=72.
Answer: x^2+5x+6
Step-by-step explanation:
Answer: x+6>84
6 greater than x ---> x+6
greater than 84-------> >84
Hopefully this helped!