Hello Tutor, I need help with question 14-19. They are all part of one question. Thank you

Questions 14-19: The Physics Club at Foothill College sells Physics Show T-shirts at the yearly Physics Show event. A linear model based on previous sales reveals the following demand equation for the T-Shirts: q = 100 4p Use the model to answer the questions that follow. Question 15 4 pts Find the elasticity at a price of $8. SHOW WORK in the space below. If you need to enter math notation. click on the square root of x toolbar item tools menu above your response. Edit View Insert Format Tools Table 12ptv Paragraphvl B I u av 2v 72v| 00v Iv Eiav 21v|o El 9| ||||| /' Question 16 5 pts ls demand elastic or inelastic at a price of $8? Should the physics club increase or decrease price to increase revenue? Why? Question 18 4 pts What is the maximum revenue? SHOW WORK computing this value in the space below. If you need to enter math notation, click on the square root of x toolbar item tools menu above your response. Edit View Insert Format Tools Table 12pt w Paragraph " B J U A BY TV QQ EV EVE . . . p 1 0 words > Question 19 4 pts How many shirts should the club sell to maximize revenue? SHOW WORK in the space below. If you need to enter math notation, click on the square root of x toolbar item tools menu above your response.Question 14 5 pts Find a formula for the Elasticity of demand, E, in terms of the price p, of the T-Shirts. SHOW WORK in the space below. If you need to enter math notation, click on the square root of x toolbar item tools menu above your response. Question 17 8| At what price should the physics club sell the shirt to maximize revenue? Use your function in Question 14 to answer this question and SHOW