What is the difference between -23 and 18?

The prefixes for the metric unit are? 18.4 is what percent of 10? Carpet Masters charges nine dollars and fifty cent per square yard to clean a carpet If you have two rooms with an area of six square yards each how much will it cost to have the carpets cleaned? What is the answer to 21y2 plus 72y-48 by factoring? The larger of two numbers is one more then four times the smaller number . If the sum of the numbers is 106 find the numbers? What are the applications of Norton theorem? What does the digit 4 represent in the number 8.324? Is 10 a lucky number? 4 26 as a decimal? How do you count from 1 till 20 in french? 234 000 000 ans Scientific notation? Is it true that your brain makes you look 5 times prettier? What does 57 stand for in heinz 57? How much is 1722 kg in tons? What is the logo with a black n at the beginning and a black a at the end? Is stiffness dependent on length? What is structural deviation? What are the relations among the polygons and squares? Many sides does a regular dodecagon have? What is the abbreviation for degrees fahrenheit?