For a cube you must find the area of one square (length times width) and then multiply it by what to get the total surface area of the cube?

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

a+b=c is your answer