The mean is all of them added together divided by the number, so multiple the mean by the number of sides, 3, and that's the perimeter. 18 x 3 = 54
Answer:
2 1/8
Step-by-step explanation:
-7/4 is equal to -14/8
14/8 plus 3/8 is 17/8
17/8 = 2 1/8
To find the markup, substract the price at which the car was bought from the price at which the car was sold:

To find the markup as a percentage from the original price, set 20,480 to be equal to 100%. If <em>x%</em> represents 6328, then:

To the nearest tenth, 30.898... = 30.9.
Therefore, the markup is equal to 30.9%.