<human>:  Four small panda bears and five bigger panda bears eat 25 pounds and 40 pounds of fresh bamboo sprouts every day, respectively. How many pounds of bamboo do the 9 pandas eat in a week?
<bot>: How many pounds of bamboo do the small panda bears eat every day? ** The small panda bears eat a total of 4 x 25 = <<4*25=100>>100 pounds of bamboo every day.
How many pounds of bamboo do the bigger panda bears eat every day? ** The bigger panda bears eat a total of 5 x 40 = <<5*40=200>>200 pounds of bamboo every day.
How many pounds of bamboo do the 9 pandas eat every day? ** So, the 9 pandas eat a total of 100 + 200 = <<100+200=300>>300 pounds of bamboo every day.
How many pounds of bamboo do the 9 pandas eat in a week? ** Therefore, they eat a total of 300 x 7 = <<300*7=2100>>2100 pounds in a week.
#### 2100