Please answer it with an explanation. this is my 3rd time posting this. no wrong answers read the questions carefully

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("A n n Aagnmmg 1 5 Question Help v {1' Suppose consumers will demand 50 units of a product when the price is $10.20 per unit and 25 units when the price is $22.20 each. Find the demand equation, assuming that it is linear. Find the price per unit when 40 units are demanded. Find the demand equation, where p is the price per unit and q is the quantity of units demanded. p = (Simplify your answer.) Pam Alnwick used to live in a province where the Harmonized Sales Tax, HST, was 14%. She recently moved to a state in the US where sales tax is 6.5%. When shopping, the task of comparing American prices with Canadian prices was further complicated by the fact that, at the time of her move, the Canadian dollar was worth 0.77US$. After thinking about it, she calculated a number K so that a pre-tax shelf price of A US$ could be sensibly compared with a pre-tax shelf price of C CDN$, so as to take into account the different sales tax rates. Her K had the property that if AK = C, then the after-tax costs in Canadian dollars were the same, while if AK is less (greater) than C, then, after taxes, the American (Canadian) price is cheaper. Find Pam's multiplier K. Pam's multiplier K is . (Type an integer or decimal rounded to four decimal places as needed.) Assignments