Me find the slope between the two points m=

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 a + b = 28 and a - b = 10, then b =?

After john worked at a job for 10 years, his salary doubled. if he started at $x, his salary after 10 years is o $2 $x42 $x-2 $24