Problem A,B,C, and D can be solved using 3*6=18 or 6*3=18
P+5= -2
p= -7 ( I subtracted 5 to both sides of the equation)
Answer:
the four point cannot be on the same line , but they have to be on the plane.
A D C E
collinear means on the same line
so ABC
non-coplanar means the point do not lie on the same plane so you can include point F
F A D B
1 foot = 12 inches
125 feet = 1,500 inches
60 feet = 720 inches
1,500 * 720 * 6 =
6,480,000 inches or 540,000 feet
