Answer:
C) 12.75
Step-by-step explanation:
4x=51
x=51/4
x=12.75
Answer:

Step-by-step explanation:
Let x = number of books that Hannah donated
We know that the number of students is 150 and the total number of books is represented by b, we can write that as:
Average number of books donated by each student = 
Now we know that Hannah donated 3 times as much as the average. We can write that as:

your answer would be -239.45.
356.54
-595.99
-------------
-239.45
C. The functions fans g have different axes of symmetry and different minimum values