The line with the arrows is where y=-3 is
3/4 = 12/16
12/16 is obviously bigger than 11/16... so 3/4 is bigger
3/4 teaspoon. ( if we need 1/4 teaspoon of pepper for every 3 potatoes, then we’ll need 2/4 teaspoon for every 6 potatoes and 3/4 for 9 potatoes, 1/4 x 3= 3/4.).
There are 53 people. The formula is
Bumps = n*(n - 1)/2
n = 53
bumps = 53*52/2 = 1378 bumps. Here's a question for you. Can you ever get an odd number of bumps? The answer is no.