What does life expenses measure ? A. the average income a population likely earns during employment
B. the average human development during a populations lifetime
C. The Average number of years that a population is likely to live
D. The average standard of living during a populations lifetime

Which summarizes the relationship between density of an element and its distribution in earth? a. the greater an element’s density, the greater the amount of it found in the crust. b. the denser an elements is, the smaller the amount of it earth core. c. the greater an elements density, the smaller the amount of it’s found in the crust

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Triangle xyz is translated 4 units up and 3 units left to yield triangle x'y'z' what is the distance between any two corresponding points on triangle xyz and trianglex'y'z' ?