There will be 2 books left over if he fills each box.
7 · 4 = 28
30 - 28 = 2
Good Luck
Answer:
Yes
Step-by-step explanation:
Example
x+2 is a factor of 2x+4.
2(x+2) = 2x+4.
Answer:
Step-by-step explanation:
Using formula 
a= 650
b= 800
and c is the unkown