Answer:
true
Step-by-step explanation:

* substitute 30 for x *

we're left with 15 < 20 which is true
Answer:
The slope of the graph is equal to 4
Step-by-step explanation:
When you do y2-y1 divided by x2-x1 you get the fraction 8/2 however when simplified you get 4, 8/2=4
525/1000 = 105/200 = 21/40
1. -1/3 - (-1/2) = .16666666666666
2. -8
Hope it helps, if you need it in fractions, you can always convert it :)
6/7, 12/14, 18,21, 24/28, 30/35, 36/42 in so on