Can ya'll help me find x and y and how to do it. Thanks

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.

In triangle abc, angle c is a right angle. find the value of the trig function indicated. find tan a if c = 17 and a = 8