Keanu bought some fish from the store for his pets. He gave his cat half as many fish as he gave to his dog. If he gave his dog 40 fish, and each fish cost him $4, calculate the total amount of money he spent at the store to buy all the fish.
The cat received half as many fish as the number given to the dog, which means the cat received 1/2*40 = 20 fish.
This means Keanu bought 20+40 = <<20+40=60>>60 fish at the store.
If each fish cost him $4, the total cost for the fish he bought at the store is 60*$4 = $<<60*4=240>>240
#### 240