6
6 challenges · solve on the first try to earn a star
At Cuthbert Grant's post there was no paper money. Value was counted in beaver pelts.
First Nations and Métis traders expected a fair deal. Balance every trade!
9
6 challenges · solve on the first try to earn a star
A crew leaves Grant's post with 3 bags of pemmican — about 270 pounds — and eats about 9 pounds a day.
The food left follows a pattern: F = 270 − 9d, where d is days of travel. Will it last?