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Application {12 marks) 1. Aflaming arrow is shot into the air to mark the beginning of the carnival. Its height, h, in metres afterfseconds can be modelled by the function Mt) 2 4. 9t2 + 24. 5: + 2. a. Determine the height height of the arrow at t= 2s. (2 marks) b. How long does it take for the arrow to hit the ground? (2 marks) c. How fast is the arrow traveling when it hits the ground? (3 marks) 2. A paint store sells 250 cans of paint per month at a price of $30 each. A survey showed that for each $0.80 decrease in price, sales would increase by 4 cans of paint. a) Determine the demand (price) function. (2 marks) b) Determine the revenue function. (1 mark) c) Determine the marginal revenue function. (2 mark)