1.) [5 points] A start-up company had sales of $72 thousand in its second year of operation and $128 .. thousand in its fth year. The growth in sales is approximately linear. 3. Find a linear function 9 giving the sales of the company in thousands of dollars, as a function of the year t, where t represents the numbers of years the company has been in business. b. Interpret the slope of your linear function 90?) found in part at using appropriate units and the context of this question. c. If the trend continues, how much will the company's sales be after 10 years of operation. 2.) [5 points] Algebraically compute the exact value of the following limit It A:2 +3x- 18 x3; 2x21B 3.) [5 points] An electronics company is developing a ion air cleaner. Their xed cost to develop the new air cleaner was $105,000. They estimate that production costs will be $12 per air cleaner. The sales department has decided that each air cleaner will be sold during the rst year at a price of 343. Let x represent the number of air cleaners sold in the rst year. 3. Find the total cost inction, C (x). b. Find the revenue function, R(x). c. Find the prot function, P(x). d. What is the break-even quantity? Round all values to the nearest whole number