Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given expression:

Substitute

into the expression:

Answer:
61
Step-by-step explanation:
and let c looks to be a right angle
10 books cost $30. To figure it out, it's just 3 times the number of books. XD
Answer: AC = 7√3
tan 30° = 
=> 
Step-by-step explanation: