Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
9-inch perimeter (the answers something square rooted with a number on the outside too)

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°

∠1 and ∠2 are vertical angles. ∠2 has a measure of 63°. what is the measure of ∠1 ? enter your answer in the box.

In his free time gary spends 7 hours per week on the internet and 13 hours a week playing video games. if gary has 5 hours of free time per day approximately what percent of his free time is spent on the internet and playing video games?