Determine the 20th derivative of y = sin(2x).

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

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1