Answer:
Both graphs can be used.
Step-by-step explanation:
because the time and the difficultly of the grade both depend on how long they take. Therefore it would be both graphs can be used.
Force = pressure * area
= 200 * 3.7
= 740 N
x= -19
-3 + x = -22
Add 3 to each side
-3+3 +x = -22 +3
x = -19
Answer: 112.5 m^2
Area of rectangle = lw
l = 7.5
w = 15
7.5 * 15 = 112.5
