Can i get an answer for this question

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax