Find the area of an area of an equilateral triangle (regular 3-gon) with the given measurement 9-inch perimeter. a=sq. in.

Area = side^2 * sqrt(3) / 4

If 9 inch perimeter then side = 3

Area = 3^3 * sqrt(3) / 4

Area = (9 / 4) * sqrt(3)

Area = 3.897114317 square inches

Step-by-step explanation:

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300