Answer:
15
Step-by-step explanation:

Answer:
c
Step-by-step explanation:
because 5 is smaller then 18
Answer:
C. cos 20/29
Step-by-step explanation:
Cosine is adjacent over hypotenuse, like SohCahToa. Therefore, 20 is the adjacent side and 29 is the hypotenuse (hypotenuse is always the longest side).
Answer:
not really sure for number one
1. 1.56y × 3.9x
2. 4.8x + 9.6y