Answer: 2
<u>Explanation:</u>
A pond had 60 fish but 10 were added so now the pond has 70 fish.
The probability of choosing a carp is 1/2 so = 35 are now carp.
There were 27 carp and now there are 35 carp so 8 carp were added.
10 fish were added and 8 of them were carp so 2 of them were tench.
0.81 = 81/100
0.5 = 5/10 = 1/2
0.63 = 63/100
0.214 = 214/1000 = 107/500
I think they are 81/90 and 75/90
Each candy bar was 3$.
19 - 4 (the price of the magazine) = 15$
15 / 5 (the amount of candy bars) = 3$