The photography club has 28 members. there are 12 boys in the club. what is the ratio of boys to girls in simplest form?
a 3/7
b 3/4
c 4/3
d 7/3

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

Iknow the answer but the calculator doesn't seem to give the right one