What is the slope of a line perpendicular to the line whose equations is x + 2y = -16

What is the smallest integer n such that n\sqrt{2} is greater than 20

In a school 2/3 of the students study a language of those who study a language 2/5 study french

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.