If x+12 is less than or equal to 5-y and 5-y is less than or equal to 2(x-3)

In this problem it decreased 20%

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 *_*