What is the customary unit of a sink

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

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?