dena won a contest her prize for winning the contest is that she can pick one bill from a bag that contains 45 one dollar bills 3 five bills and 2 ten dollar bills

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?