The World Bank reported data on the number of cell phones in use worldwide.
2006 - 2.7
2009 - 4.6
2011 - 6.0
How does the rate of change from 2006 to 2009
compare
with the rate of change from 2009 to
2011?

Which pair of angles are vertical angles? ∠1 and ∠4 ∠1 and ∠2 ∠2 and ∠4 ∠2 and ∠3

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?