B. According to a College Board report, the population of American 2008 high school graduates had a mean Math SAT score of 515 with standard deviation of 116. What is the probability that of a randomly selected senior from this population scoring between 500 and 800 on the Math portion of the SAT Reasoning Test?

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (π = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m

How do i do this activity, is appreciated

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?