Roger is running in the Peachtree Road Race and his current speed is 3/8 mile per 1/2 hour. What is his speed in miles per hour?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?