Answer:
Your friend is incorrect because if you divide 21 by 7 you will get 3 if you add 7 to 3 you get 10 therefore your friend is incorrect.
Answer: 
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:

Where "m" is the slope and "b" is the y-intercept.
You need to find slope of the line with the formula:

Pick to points of the given line. You can choose the point (60,3) and the point (30,2).
Then, substituting into the formula:

You can observe in the graph that the line intercepts the y-axis at the point (0,1), therefore "b" is:

Substituting the slope and the y-intercept found into
, you get the equation of this line:

Where "y" represents the Height (1,000 ft) and "x" represents the Time in seconds.
The answer to this question that you have me would be 5|x|-7=7 will equal to x=2
No, you should have reduced each base to...
3^(3*2x) = 3^(2*(x-3))
and then you can cancel each base
3*2x = 2*(x-3)
6x = 2x-6
4x= -6
x = -3/2
Answer:
thr answers are A and D of the question