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?

Show that the following rational number by expressing it as a ratio quotient of two integers 0.9

Suppose a plant grew 4 1/2 inches one week and 2 3/8 inches the next week. How many inches did it grow during both weeks?

The one in the hundred thousands place blake the vaule of the middle one

Hay's Linens sells hand towels in sets of 17 and bath towels in sets of 6. If the 7 store sold the same number of each this morning, what is the smallest number of each type of towel that the store must have sold?

The exchange rate of U. S. Dollars ($) to Icelandic krona (ISK) is $1.00=120 ISK. On a trip to Reykjavik, Geri orders a meal for 2370 ISK. What is the equivalent price in U. S. Dollars and cents? Enter your answer in the form $ab.

How do you Solve 3-x=9

A. Centipedes have 2 legs per segment. They can have from 30 to 354 legs. Find a range for the number of segments a centipede can have. B. Millipedes have 4 legs per segment. The record number of legs on a millipede is 752.

A rate for $18 for three books

Take away 0 from any number tell the rule you discovered

Mike has $22 in his bank account and deposits $11.50 each week. At the same time, Tim has $218 in his account but is withdrawing $13 each week. When will the accounts have the same balance? How much money will each of them have after 12 weeks?