Answer:

Step-by-step explanation:
Hello!
We can utilize the slope formula to find the slope.
Slope Formula: 
Remember that a coordinate is written in the form (x,y)
<h3>Find the Slope</h3>
The slope of the line is
.
Your answer should be -11.5
It is okay to take the inverse of both side given that you remember to exclude the value that make the denominator zero which is in this case r=-1
It would be 23 girls if you divide 46 by 2 since your trying to figure out the amount of boys for 46 girls.
<h3>
Answer: 72 words per minute</h3>
Work Shown:
1 hour = 60 min
2 hours = 120 min (multiplied both sides by 2)
2 hours + 30 min = 120 min + 30 min = 150 min
speed = (number of words typed)/(time taken)
speed = (10800 words)/(150 min)
speed = (10800/150) words per minute
speed = 72 words per minute