Hey I want to know what 2 #s do you multiply to get -80 and the same 2 #s to add to get -5

A bin in a nut store contains 100 lb of amixture of almonds, peanuts, and raisins. Almonds sell for $1.89/lb, peanuts for $1.58/lb, and raisins for $1.39/lb. If the mixture contains twice as many pounds of peanuts as almonds, and if the total value of the almonds and the raisins in the mixture is...