The ratio of oil to vinegar in a certain salad dressing is 8: 5. how much oil is blended with 7 liters of vinegar forbthat recipe?

8:5 x:7
8/5=x/7 Solve for x
x=11 1/5 or 11.2 liters

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*