Q varies inversely with (5-t). If Q = 8 when t = 3, find the value of: t when Q = 16 Don't quite understand what to do. Step by step answer would be great!

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

Nine people are going to share a 128-ounces bottle of soda. how many ounces will each person get drink? choose the correct equation and answer for this situation

What is the circumference of a circle with an area of 50.24 cm²?