Polly bought a cracker for $7 and then bought a parrot for $2. By how much did Polly's account change after her transactions?

1foot = 12 inches; 1 yard = 3 feet

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.