15:10 because 25 is the total so minus the amount of boy which gives you 10
The LCM of two prime numbers is generally just their product, since they share no common factors.
3 and 7 are both prime numbers, so their LCM (least common multiple) is simply the numbers multiplied together. In this case, the LCM is thus 21.
Answer:

Step-by-step explanation:

Using the identity,


so

Convert to degrees.

False Sometimes its different for all
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