Help me with this pls

8 cm³

Step-by-step explanation:

Let be the length of one edge of the cube.

A cube has 12 edges.

Therefore, if the total length of all the edges of a cube is L cm, then we can write this as:  L = 12

A cube has 6 square faces.  Area of each face = length x width.  If the length and width of the cube is (as already defined), then the surface area of one face is .  Therefore, the surface area of the cube = 6

Therefore, if the surface area = total length of the edges:

divide by :                  

divide both sides by 6:  

So the length of each edge of the cube is 2 cm

Now we know the length of each of the edges of the cube, we can calculate the volume:

Volume = width x length x height

             = 2 x 2 x 2

             = 8 cm³

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

yes because they have the same amount of green and blur marbles.

step-by-step explanation: