Molly: [tex] \frac{20 baskets}{4 minutes} [/tex] = [tex] \frac{5 baskets}{1 minute} [/tex] = 5 baskets per minute
Nico: [tex] \frac{42 baskets}{6 minutes} [/tex] = [tex] \frac{7 baskets}{1 minute} [/tex] = 7 baskets per minute
Nico - Molly: 7 - 5 = 2
Answer: 2