Khalid buys story books from an online store. Each book costs AED12.99 and shipping fee is charged at AED 4.95 for all the books together. Which expression could Khalid use that would represent the cost of purchasing his books?

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r