Answer:
$1.67
Step-by-step explanation:
Take the total cost and divide by the number of markers
$20/12 =1.6666666
Since we are dealing with money we round to the nearest cent
$1.67
Multiply the fraction by 100%.
400 ÷ 3 = 133 1/3
So the perimeter of the 3 sides will be 133 + 133 + 134, making it 400
Total area = 133 x 134 = 17822 square feet
So the dimension is 133 by 134 feet
