I give u the answers of first and second one.
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Answer:
120
Step-by-step explanation:
Answer:

Step-by-step explanation:
Commission received on selling each storm window
of the selling price of each storm window
Commission received on selling each door
of the selling price of each door
Amount earned on selling storm windows = $5,400
Amount earned on selling doors = $28,790
Commission received on selling storm windows 
Commission received on selling doors 
Therefore,
Total commission received 
The answer is 6.5 because of the angle that is used
Sin^2(x), it’s a sin graph with all positive values which could indicate that it’s squared