Which term refers to any of earths topographic feautures ?

a. deposit
b. landform
c. landscape
d. environment

:calculate the sum of the interior angles of a 13-sided polygon.

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation

Irelanda. populationb. square mileagec. average population density per square mile