<span>9-1 is 8 X 5 is 40, the answer is B.</span>

<h2>
Explanation:</h2>
In this exercise, we have the following point:

Let's assume that y varies directly as x, so this implies we can writ y as the product of x and some non-zero real constant k. In a mathematical language:

As you can see, this is the equation of a line whose slope is k and passes through the origin. Therefore, the slope of the line is the constant of proportionality we are looking for:

<h2>Learn more:</h2>
Direct and indirect proportionality: brainly.com/question/10945121
#LearnWithBrainly
Answer:
Step-by-step explanation:
At this price, the store sells 100 men's hats per week. The owner estimates that for every $1 increase in price, one fewer men's hat is sold per week
To answer you divide 45 by .40 and you get 112.5 which I think is the answer.
hope that helped.