[วองโกเล่แฟมิลี่]

1. I looked out my window and saw a group of children and dog playing in my back yard, Icounted 17 heads and 44 feet. What is the product of the number of children and the number of dog in my backyard?

2. A fish consists of a head, a body and a tail. The head is 9 cm long. The tail is as long the head and half the body, the body is as long as the head plus the tail. In cm, find the length of fish.

3. A science lab seating 35 pupils has 3 times as many single desks as double desks. If all of the places are occupied. Find the number of single desk.

4.Mikalia can mow a soccer field with her lawn mower in 4 hours. Andre can mow the same field with his lawn mower in 2 hours. How long will it take the two of them working together to mow the field?