I’m stuck please help me

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

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4