Which of the following interpretations for the given expression is correct? a2 + 7x + 2 OA. The square of the sum of x, 7x, and 2. OB. The product of x and the sum of x, 7, and 2. OC. The sum of the square of x + 7 and 2. OD. The sum of X,7x, and 2.

Caleb and emily are standing 100 yards from each other. caleb looks up at a 45° angle to see a hot air balloon. emily looks up at a 60° angle to see the same hot air balloon. approximately how far is the hot air balloon off the ground? a)44.2 yd. b)63.4 yd. c)73.2 yd. d)89.7 yd.