If BC = 8 and AB = 16 solve for the following (round to the nearest lenth)​

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6

Do xuan nam isgoing to invest $1000 at a simple interest rate of 4% how long will it take for the investment to be worth $1040?