What is 2 to the second power plus 4 to the second power divided by 2 to the second power? please help!

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

W-16=-12 solve each one step equation plz