Answer:
1 hour ago would be 3C.
3 hours ago would be 9C.
4.5 hours ago would be 13.5
Step-by-step explanation:
<span>(-4-x)-(3y-9x)
= </span><span>-4 - x - 3y + 9x
= 8x - 3y - 4</span>
The answer is 16 brainly would help ;)
Answer:

Step-by-step explanation:






Well, notice the picture below
recall cosine is adjacent over hypotenuse
what's the hypotenuse? well, you can just use the pythagorean theorem to get "c" or hypotenuse