Find an equation in standard form for the hyperbola with vertices at (0, ±9) and foci at (0, ±10)

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Convert 50 kilogram to pounds. (the conversion factor from kilogram to pound is 2.2046.) a. 52.2 lb. b. 110.2 lb. c. 22.6 lb. d. 47.8 lb.

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show