8. The table below tracks how much money a taxi driver spent on gas each day: Monday
Tuesday
Wednesday Thursday
Friday
Money spent
on gas
$57.81
$15.42
$12.50
$84.12

If the taxi driver spent an average of $44.15 on gas each day, how much did he spend on Friday?

50.90$

Step-by-step explanation:

add Monday through Friday= 169.85

then multiply 44.15 by 5 = 220.75

subtract both 220.75 by 169.85 = 50.90

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.