At an amusement park, 60% of the people were adults, and the rest were children. there were 720 adults. how many people were at the amusement park

Which equation matches the graph shown ?

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244