1. Each of the following functions has a critical point at (0,0). Show that the second derivative tes is inconclusive for all three functions. Then classify the point (0,0) as a local maximum, local minimum, or saddle point using a graph. f(x,y) = x+ + y4 • f{x, y) = 16 – x* – y+ • f{x, y) = x* - y*

Laura shares 175 sweets equally between 9 of her friends. How many sweets will she have left over?

Michelle bought 5 bags of hot chips and 3 cans of soda for $21. At the same store, Tony bought 4 bags of hot chips and 4 cans of soda for $20.

Natalie, Mark and Peter are playing Overwatch. Natalie got 11 more shots than Mark, Peter got 3 times more than Natalie. Together they all got 84 shots. How many shots did Natalie get