Answer:
D
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
He wil be 20 because if his brother is 10 and it says his brothers age is his age but just doubled then it would be 20 example: If bobs brother was 40 then bob would be 80
Answer:
What is the angle for cos, keep question clearly
If angle is 90° then answer is 0
