Find the equivalent expression to 5^6 5^11/5^5 5^6/5^1 5^1/5^16 5^11/5^-5

Given that (x-3) is a factor of f(x)=x^3+ax^2-x-6, find a and hence the number of real roots or the equation f(x)=0

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u