Jerry drove 10 miles in half the time it took Marcy to drive 10 miles. If Jerry’s average speed was r miles per hour, what was marcy’s average speed, in miles per hour?

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be