The graph represents the relationship between the number of rocks a child collects, r, over a number of weeks, w. Which function can be used to determine the number of rocks, r, a child will collect after w weeks? r = 15w + 5 r=115w+5 r = 5w + 15 r=15w+15

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.