What is the surface area of a cube that has a side length of 8 mm? Use the formula is S A = 6 s squared, where SA is the surface area of the cube and s is the length of each side.

Surface area of a cube = 384 mm²

Step-by-step explanation:

Surface area of a cube = 6 s²

Where

s = side length of the cube

s = 8 mm

Surface area of a cube = 6 s²

= 6 * 8²

= 6 * 64

= 384 mm²

Surface area of a cube = 384 mm²

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.