Which expression simplifies to m-2/m-1?

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

What is the measure of one interior angle of a pentagon