Answer:
0.25
Step-by-step explanation:
Average means 
According to the formula, each student in Mr. Goldwasser's class read

books on average, and each student in Mr. Welch's class read

books on average.
Therefore, the answer will be

The answer is 9 sorry if this is wrong
It should but 88 is still a A
Answer:
d. not a real number
Step-by-step explanation:
it is not a real number because theres a negative under root
Answer:
1) 2/3
2) y= 2x+4
Step-by-step explanation:
For number one, use the formula
.
Insert the given coordinates into the formula.
7-1/10-1= 6/9
Simplify 6/9.
6/9÷3= 2/3
For the second one, I used desmos calculator.
Hope this helps! :)