Answer:
2.5 cm
Step-by-step explanation:
We see the diameter is 5cm
so the radius is half the diameter
5/2 = 2.5 cm
Evaluation of square root 169 = 13, so 10 + 13 = 23
Answer:
Step-by-step explanation:At the start of the question the population of the lake was 60 fish 1 year ago.
In one year the population dropped 25%.
25% of 60 is 15.
60 minus 15 equals 45