A zoo has 525 animals there are 5 zookeeper every 75 animal calculate the number of zookeepers that work in the zoo?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?