Solve for the variable in 7/28 =25/×

Multiply both sides by x, so:
7x/28=25. then multuply both sides by 28 so:
7x= 700
divide both sides by 7
so x=100

Number nine is f(x)= 40x : ) hoped i ya

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 *_*