Find n. perimeter=26cm the length is 9cm what is the area = to

Step-by-step explanation:

Perimeter = 26 cm

2*(length + width) = 26

2*(9+ width) = 26   {Divide both sides by 2}

9 + width = 26/2

9+ width = 13

width = 13 - 9

width = 4 cm

Area = length * width

       = 9 * 4

       = 36 square cm

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify