Round to nearest whole number. 578.3

The jurassic zoo charges $14 for each adult admission and $5 for each child. the total bill for 77 people from a school trip was $565. how many adults and how many children went to the zoo? i

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

Ill mark the brainliest if you me with the these three questions 7,8,9