Answer:
Correct choice is B
Step-by-step explanation:
Let x% be your final test score, then the average of all test scores is

Since you must have an average between 80% and 89%, then

X is measured in percent, then the greatest value of x can be 100%. You get that

The answer would be 920. hope that helped
X=-53x+378, if you need explanation used ask me.
Remainder theorem again...


So Yes,
is a factor.