Caden bought four books. the cost of three books were $10,$13, and $15. the average cost of four books is at least $14. what is the minimum cost of four books

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?

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120