The length of a cube is 9 m. What is the surface area of the cube?​

Step-by-step explanation:

A cube has six sides of equal size. The area of side is the length times (x) the width.A 9 meter side is 9 x 9 or 81 square meters. For all six sides of the 9m cube would be 81 square meters x 6, or 486 square meters.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110