Answer:
Planes and pulleys can increase the speed of completed work
Step-by-step explanation:
D because using the y=mx+b the slope(mx) is 1/2 (rise over run) and it starts at point 0,-2(b) since y is always 0 and -2 is the x value
You have to start answer more questions daily in which ever field you are best in
Maybe 50 divided by 25 is 2 so the answer is 2
hope i helped :D : D