Answer:
1.) -7/2
2. -42/5
hope this helps, I just did the math.
Answer:
32
Step-by-step explanation:
(3x-4)+(3x-8)=180
6x-12=180
6x=192
X=32
Answer:
D. 
Step-by-step explanation:
The point-slope form of a line is given by:

The line given to us has equation;
.
The slope of this line is -4. The of the line perpendicular to this line is the negative reciprocal of the slope of the given line.
Our slope of interest is therefore; 
Since the point goes through (-2,7), we have
.
We plug in the slope and the point into the point-slope formula to obain;

The required equation is:

Answer:
Step-by-step explanation:
f(t)= a(1+r)^t
f(10)= 400(1+0.25)^10
f(10)=3725.3
Find points and find the slope from the points. Then plug the points into the equation along with the slope and then you can solve for b