If r(∅)= sin ∅/ cos ∅ and s(∅)= cos ∅ + sin (∅ - 300°), find √3/2 r(180°) + s(30°).

Find cot x if sin x cot x csc x = √2

Rationalize the denominator- 12x/√x-10

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?