#1-5 help plz question in pic

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

What statement is true? 2x^2-9x+2=-1