At a party, 6 gentlemen leave their hats in a wardrobe. In how many ways can their hats be returned to them so that no gentleman receives his own hat?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Huong is organizing paperback and hardback books for her club's used book sale. the number of paperbacks is 12 less than three times the number of hardbacks. huong had 162 paperbacks. how many hardback books were there?