Dawn is going scuba diving. which situation would be modeled by a positive number?

a. on the dive boat deck
b. at the waterline
c. underwater near a reef
d. on the ocean floor

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

Find the difference (8ab+a+2) - (3ab+6)

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142