How long is 13 weeks?

What is the formula for probability when you don't know the outcome? What is 167 more than 78? Is there a free site that helps learn mathematics If so can you add a related link? What is a money representation for one third? How do you write 26.731 in expanded form? What is the fraction for .625 inches? What chart is represented by a circle divided into portions? What is the roman numeral for XLVI? What is 0 over 0? Correctly expresses the number below in scientific notation45000000? Enclosing a rectangular area using 34 feet of fence? What is the compound sentence of abs value ax plus b equals 15? 5 S of G? Where does the Arabic numbers come from? What if your car gets 19.7 miles per gallon mpg on a trip of 547 miles How many gallons of gasoline did you use on the trip Round your answer to the nearest tenth? What is the multiple causation? What function LH? How many times can 21 go into 66? How many sides does a 3D rectangle have? Does 0.99999999999999999 equal 1?