How do I simplify the ratio of

42 : 28 : 21

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

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