A maintenance man has 12 keys on his key ring. if he tries the keys at random on a storage room door, discarding those that do not work, what is the probability that he will get the door open on his 4th try?

A fruit stand has to decide what to charge for their produce. They need $10dollar sign, 10 for 4 apples and 4 oranges. They also need $12dollar sign, 12 for 6 apples and 6 oranges. We put this information into a system of linear equations.

The length of a rectangle is 3 meters more than the width. If the perimeter is 170 meters, what are the length and the width?

How could u covert the length of the ant from centimeters to kilometer? how much do the ant way in km

1 1/2 cups of sugar for every 2/3 cup of flour

The bus company charges $2.95 per mile for each bus. What is the cost for all 6 buses to drive 124 mile trip?

What decimal is equivalent to 22 out of 25

A participant in a 21-mile walkathon walks at a steady rate of 3 per hours. He thinks, "the relationship between the number of miles left to walk and the number of hours I already walked can be represented by a line with slope - 3.

Which is one way to check out the answer to 120 : 4 = 30?

What adds together to make 18 and multiplies to make 30

A seamstress has a piece of cloth that is 3 yards long she cuts it into shorter lengths of 16 inches each. how many of the shorter pieces can she cut?