An ant crawls at a rate of 2 1/6 feet per minute at this rate how long does it take the ant to crawl a distance of 5 and 1/5 foot

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

The measure of an angle is 117°. what is the measure of a supplementary angle?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.