page 1.)
1.) answer is (1,5)
2.) answer is 100
3.) answer is (5,7)
4.) answer is r=4 and b=2
Page 2.)
1.) answer is (-1,3)
2.) answer is c.
Page 3.)
1.) answer is a
2.) answer is b
3.) answer is d
Page 4.)
1.) answer is y=2x
2.) answer is d
I hope this helps
B) thirteen percent
C) sixteen percent
D) eighteen percent