Ill mark brainlist plss help

What is not true about kl and mn? what is mn? (show )

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.