A stoplight has the following cycle: green for 50 seconds, yellow for 4 seconds, and red for 62 seconds. If you arrive at the light 50 times, predict how many times you will have to stop and wait more than 4 seconds.

Solving algebraic equations 2m+3=11

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?