Answer:
20 blocks per pound
Step-by-step explanation:
We can see the line of best fit goes through the points (0, 0) and (5, 100). WE will use these to find the slope:

Using our points,

This makes the slope 20 blocks per pound.
Answer:
9.00%
Step-by-step explanation:
So, we would do
18 divided by 200 = 9.00%
Therefore your answer will be 9.00%
Hope this helps!
You have to divide the fractions by the numbers
18 / 25 = 0.72 per marker
Multiply 12 times $1.75= $21.00
Have a nice day!