Adoor opening is 2 meters high. if there is a 39 centimeter gap between the top of casey's head and the top of the door opening, how tall is casey?

centimeters

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.

In the geometric progression –3, 12, −48… what term is 3,072?

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.