A cube has side lengths of 2/5 of an inch, what is the surface area and volume of the cube?

Show some work plz

Surface area - 0.96, Volume - 0.064

Step-by-step explanation:

2/5- 0.40

For surface area, the equation is 6a^2

When you fill in the variable its

6(0.4)^2

follow pemdas, so you do the exponents first

(0.4)(0.4)

0.16

6(0.16)

0.96

The formula for volume is a^3

0.4^3

(0.4)(0.4)(0.4)

(0.16)(0.4)

0.064

i dont know it

step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w