Answer:
The answer for first one is,

sorry I don't know the answer for second one.
Answer:
She should earn 225 dollars.
Step-by-step explanation:
I know this because 50 ÷ 4 = 12.5 and 12.5 × 18 = 225.
answer: (-6,6) that's youre answer
The simplified fraction for sinC will be 9/41