All that is needed is for you to graph the points and if they form a line, they will be collinear. If not, they will not be collinear.
The volume consists of L*W*H. Since it is a cube, each measurement will be the same. The cube is 6 for Length, width, and height. The SA for the base of the box is 36cm.
For 6, you could divide 56 kilometers by 8 kilometers to get 7 kilometers. Multiply 7 by 5 to get 35. There would be 35 miles in 56 kilometers
i don't really get the part after the (-4,-6) , what did u write there