For number 19:
"at least 150" means either 150 ≤ ? or ? ≥ 150
plus 3 so +3x
The answer would be 150 ≤ 100 + 3x
Number 20:
A is at -2.5. The inverse is the opposite so 2.5
Answer: -1
Step-by-step explanation:
To find the slope fo the line with the given points, you use the formula
.

Now, we know that the slope is -1.
Answer:
I couldn't figure out how to type it so I typed it somewhere else lol. Hope it helps:)
Step-by-step explanation:
Answer:
the segmment wx represents east and west
Step-by-step explanation:
Answer:
a = 
Step-by-step explanation:
Given
ga + q = r ( subtract q from both sides )
ga = r - q ( isolate a by dividing both sides by g )
a = 