The United States has an area of 5.7 million square miles. The average
population density is 530 people for every 10 square miles. Estimate the
population of the United States according to this information.
When you type in your answer --> 5.7 million = 5700000

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.