What is (81x^2 -4y^2) square units factored?

What is the quotient of -3/8and-1/3?

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.