Hello! I can help you with this! So, she get's 4,00 points for every 35 stars she gets. That proportion would be 35/4,000 = x/86,000 or it could be 4,000/35 = 86,000/x, because you don't know the amount of stars collected, but you know the total amount of points she earns. The proportions can be formatted a bit differently as long as they give you the same answer. The answers are A and E.
If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.
