Anumber to the 10th power divided by the same number to the 7th power equals 512. what is the number ?

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Add the fractions and simplify 1/2+ 1/3