Pls answer my question

x = 23

Step-by-step explanation:

Exterior angles equals the sum of opposite interior angles.

2x+  3 + 51 = 100

Combine like terms.

2x + 54 = 100   {Subtract 54 from both sides}

        2x = 100 - 54

       2x = 46    {Divide both sides by 2}

       x = 46/2

x = 23

answer: .64

step-by-step explanation

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

2

step-by-step explanation: