Which of the following shows the expression below with the numbers substituted for the variables?
(m ÷ 4) - p(3n + 1), for m = 8, n = 2 and p = 3

select the best answer from the choices provided.
(8 ÷ 4) - 2(3 + 1)
(8 ÷ 4) - [3(2) + 1]
(8 ÷ 4) - 3[3(2) + 1]
(2 ÷ 4) - 8[3(2) + 1]

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2