How many halfs in 15cm?

What is negative nine times nine? What is eight sevenths plus four thirds? What make a number sequence? How many cm makes 20dm? Is the clams circulation open or closed? Calculate the PV of a bond having 5 years to maturity a face value of 2000 annual payment of 50 and a market interest rate of 5 percent? What is the value of a Trent Green 1999 card? How many zeros in 10 to the sixtieth power? 35 percent as a simplified fraction? Slaves in the Chesapeake region expanded their numbers through natural increases in birthrate yet those in South Carolina did not What is the most likely reason for this difference? Is 314890 greater than 320040? What is the opposite of the integers 3 units away from -7? What is the era from 750 to 1200? What is x out of 100 to equal 78 percent? What is proboilty? How do you write 19 and a quarter inch'? What shape had 1 curved face and 2 flat faces? 40 percent of 80? What is a definition for the word circumspect? What material is JIS Z 2550?