If sin theta = -3/5 and theta terminates in the fourth quadrant, find the exact value of tan 2θ

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?