Answer:
24
Step-by-step explanation:
Remark
This can be done with a proportion which consists of 2 equal ratios. That's 4 parts total. If you know 3 of the parts, you can find the 4th.
Givens
Stars1 6
Moon1 4
Starts2 x
Moon2 16
Formula
stars1/moon1 = stars2/moon2
Solution
6/4 = x / 16 Multiply by 16
6 * 16/4 = x
Answer: 96/4 = 24