Answer:
There are 200 4th grades and 360 third graders
Step-by-step explanation:
560/2=280-80=200 280+80=360
2(2−1)
4−2
Grouping
Common factor
Solution
7x^3 - 7x^2 + 35x
7x(x^2-x+5)
7x^3-7x^2+35x