Xavier is thinking of a number, nine more than four times the number is fifteen less than twice the nuber what is xaviers number

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

10% of 1,900,000. show me how you got the answer

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.