If a = 3 feet, b = 8 feet, and c = 6
feet, what is the length of d
rounded to the nearest
hundredth of a foot?

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that

eight hundred an fifty one point four hundred and fifteen

800+50+1+.4+.01+.005

the answer is  

d.

21

i did this one. so you should get it right.