If set a has 4 elements and b has 3 elements then set n(a x b) is?.

Arecycling company gives you 5 cents for every plastic bottle and 10 cents for every glass bottle. from a certain individual the recycling company received 59 bottles and paid $4.55. how many glass bottles did the individuals recycle?

It takes longer to fly an airplane against a with it

How are brightness and size related when it comes to stars