Answer:
The slope is 
Step-by-step explanation:
Hi there!
We are given the points (0, 4) and (6, 13)
We want to find the slope of the line containing these two points
Slope (m) is the steepness of the line. When calculating from two points, you use the equation
, where
and
are points
Although we have what we need to find the slope, let's label the values of the points to avoid confusion and mistakes.

Substitute these values into the equation
m=
m=
Subtract
m=
Simplify
m=
The slope of the line is 3/2
Hope this helps!
See more on calculating slopes from 2 points here: brainly.com/question/26738734
The maximum profit is the highest point on the curve at (3, 45), and since the y-value is the profit in hundreds of dollars, the maximum profit is $4500.
The shop is making a profit as long as the curve is above the x-axis, so this is over the given interval (0, 10).
The maximum profit is earned at x = 3, and the x-value is the money spent on advertising in hundreds of dollars, so this means that $300 was spent of advertising.
The answer is 1,000 4 or below you round down and 5 or higher you round up