Answer:
it b
Step-by-step explanation:
Answer:

Step-by-step explanation:

Firstly, we've to interchange the variables.

Solving for y

Adding 3 to both sides

Multiplying 2 to both sides

Taking cosine on both sides

Dividing both sides by y

Replace y by 
=> 
Answer:
$9.57
Step-by-step explanation:
47.83 x 20% = 9.57
Seven hundred and seventy thousand and seventy
hope this helps