Giselle pays $190 in advance on her account at the athletic club. each time she uses the club, $10 is deducted from the account. model the situation with a linear function

Can someone explain to me how to do

State one method by which you can recognize a perfect square trinomial.

Choose the right classification of 5x + 3x^4 - 7x^3 + 10 by number terms and he degree 1. third degree polynomial 2. fourth degree polynomial 3. sixth degree polynomial 4. first degree binomial