The topic of the worksheet is called evaluate the expressions
the problem i have to answer is (-8)^3 divided by 2^3 ?
how do i solve this.

Find the nonpermissible replacement for binthis expression.b2/5b +5

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer