It will be c- 20:
4q and 2(q+30) have to equal the same therefore q=30 which makes both these equations equal.
3p + 4q then have to equal 180 as they are on a straight line so you know q=30 so 4x30=120 so 180-120=60
Then 60/3=20 and that is your answer.
Hope this helps :)
slope is -1

we have a point as (-4,3)
we can use slope intercept form of line

we can plug m=-1

now, we can plug point (-4,3)
x=-4 and y=3 and then we can find b


now, we can plug back
and we get
............Answer
She would have $800 left.
$4000 - $2800= 1200
1200 is how much she spent the last 3 months
1200/ 3= 400
400 * 5= $2000
2800- 2000= $800
B.....is has division...................
Wouldn't this be science because it's dealing with temperature?