259 Students go on a field trip. There are 19 vehicles, some vans and some buses. 7 students can fit in a van, and 25 students can fit in a bus.
how many buses were there?
how many vans were there?

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Ineed if you could explain and give me the answer you! this needs done

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)