Mary sees a flock of ducks crossing the street. There are 2 ducks with 5 ducklings each, 6 ducks with 3 ducklings each, and 9 ducks with 6 ducklings each. How many ducks and ducklings are there total? Give the rationale and then the answer.
Let's think step by step. First find the total number of ducklings the first two ducks have: 2 ducks * 5 ducklings / duck = 10 ducklings. Then find the total number of ducklings the next six ducks have: 6 ducks * 3 ducklings / duck = 18 ducklings. Then find the total number of ducklings the last 9 ducks have: 9 ducks * 6 ducklings / duck = 54 ducklings. Then add up all the ducks and ducklings to find the total number: 10 ducklings + 18 ducklings + 54 ducklings + 2 ducks + 6 ducks + 9 ducks = 99 ducks.. The answer is: 99.

Daria consumes 2.5 times the amount of pizza that Don does. If Don eats 80 pizzas, how many pizzas do they both eat altogether? Give the rationale and then the answer.
Let's think step by step. Since Daria consumes two and a half times the amount of pizza that Don does, if Don eats 80 pizzas, Daria eats 2.5 * 80 = 200 pizzas. Together, they eat 200 + 80 = 280 pizzas.. The answer is: 280.

Lara is baking cookies using four baking trays. She places five rows of cookies on a baking tray where there are six cookies in one row. How many cookies is she baking? Give the rationale and then the answer.
Let's think step by step. Lara can bake 5 x 6 = 30 cookies in one tray. So, Lara is baking a total of 30 x 4 = 120 cookies.. The answer is: 120.