The summary statistics for household incomes of all of the houses on church street are shown above. four sample groups were taken from houses on the street. which sample group has a mean greater than that of the population? *

group 1

group 2

group 3

group 4

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)