Solve: Tan20. Tan 40. Tan 80

plaease help me​

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?