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.
The answer is B. Plug in the x values to check the y values.
The answer would be 9 87/100
The answer is 12,000 because the 1(00) was not enough to raise it to 13,000.
12,502 would round to 13,000
The answer to your question is 12,000
Point slope or standard form? Standard is y=0-+1, point is y=1