Mayla wrote a survey question in the newspaper about changing the school colors. 90% of those who responded in an e-mail said they should be changed. She concluded that 90% of the student body wants the color to be changed. Is this conclusion valid. Explain

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

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,