Asuit is on sale for 71% off. the sale price is $121.80 what is the regular price?

$420

Step-by-step explanation:

Let the regular price be represented by r.  Then:

(1.00 - 0.71)r = $121.80, or

0.29r = $121.80.

Solving for r by dividing both sides of this equatin by 0.29, we get:

r = $121.80 / 0.29 = $420.

The regular price of the suit was $420.

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