If a circle has a diameter of 99 whats its circumfrence

To which set of numbers does the number –5 belong? select all that apply. integers natural numbers rational numbers real numbers whole numbers

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how