Mr. torres took his students to the dolphin show. each row in the stadium has 11 seats. one adult sat at each end of the row, and each group of 4 students was seated between 2 adults. mr torres sat by himself. how many adults were there?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.