Each dvd storage case is about 1/5 inch thick. what will be the height in simplest form of 12 cases sold together?

2 2/5 inches thick.

1/5 x 12 = 12/5 then make that into a mixed number.

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 *_*