Suppose Elena has $10 to spend on pizza and soda. What is the first thing she would purchase a slice of pizza or glass of soda? How did you determine this?

Total Marginal Slices of Pizza Utility Utility Price MU/Price 0 0 20 20 $2.50 8 2 35 15 $2.50 6 3 45 10 $2.50 4 50 5 $2.50 2 5 46 -4 $2.50 -1.6 6 38 -8 $2.50 -3.2 20 -18 $2.50 -7.2 8 5 -15 $2.50 -6 Glasses of Total Marginal Soda Utility Utility Price MU/Price 0 0 12 12 $1.00 12 N 20 8 $1.00 8 W 24 4 $1.00 4 19 -5 $1.00 -5 13 -6 $1.00 -6 6 -7 $1.00 -7