What are the roots of the polynomial f(x)=x^2+9x-70?

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

How can you find the mean absolute deviation (mad) for this set of data?

Solve 17= -13 - 8x and show your work.