Hi, please answer #1,2, and 3. Thank you!

QUESTION 1 A company finds that it can soll 100 items at a price of $410 each, and sell 440 items at a price of $220 each. Assuming a linear demand equation, how many items will they be able to sell at a price of $290? (Round to the nearest whole number) QUESTION 2 Each item a firm makes costs $2 to manufacture. If the items sel for $23, and the firm's fixed costs are $46,000, find the break-even quantity. (Round to the nearest whole number) QUESTION 3 If the demand equation is D(x) = 75 - 1.45x and the supply equation is S(x) = 1.91x+12, find the equilibrium price. u