If 5/6 is divided by a certain fraction a/b, the result is 1/4. what is the fraction a/b?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

What is the greater volume 72 quarts or 23 gallons