math question help as fast as you can!

Question

Marissa makes 42 cakes in 2 weeks, Carlos makes 64 cakes in 16 days, and Shelby makes 7 cakes in 2 days. When the shop owner graphs the relationship between the number of cakes made and days, which baker makes cakes at the fastest rate?

Answer 1

42/14 = 3 per day

64/16 = 4 per day, Carlos is fastest

7/2 = 3.5 per day