Simplify each expression -21v^9/-6v^8, v=0
A. 7/2v^-2
B. 7/2v^2
C. 7/2v^2
D. 7/2v^14

The function show two sisters' savings account and the rate at which they plan to deposit money

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

If the value of cos330°is√3/2 then find cos 165°.