Answer:
a
Step-by-step explanation:
Well, 99 times 10 is 990, 990 plus 9 is 999. If you understand pls respond
third option is the correct answer....
28 white ducks swimming in pond
2*(28 white ducks) = 56 brown ducks flew and landed in pond
(28 white ducks)/2 = 14 white ducks remained in the pond
Ducks remaining in the pond (at this point):
(14 white ducks) + (56 brown ducks) = <u><em>70 ducks in all</em></u>