PLEASE!
5. Which of the following are true statements? Select all that apply. (2 points)
sin 50° = sin 22° cos 28° + cos 22° sin 28°
sin 50° = sin 72° cos 22° - sin 72° cos 220
cos 50º = cos 64º sin 14° + cos 64 sin 14°
tan50° = tan 52°+tan 2°/ 1-tan 52°tan 20
tan50°=tan 11° + tan 39°/ 1-tan 11°tan39°

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.