Question 19 {2 points} Statistics Canada has been tracking the number of farms inAlberta. In Zll, there were 43 234 farms _ Since that time, the number of farms has decreased at an average rate of 1.2% per year. a} State an exponential equation that could be used to model the number of farms , F, in Alberta, t years after 21311. {I mark} b} Using your equation, determine the number of farms in Alberta in 21:84. (1 mark] Question 18 (4 points) Algebraically solve the exponential equations below. You must show all your work for full marks. (2 marks each) a) (64) 2x-5 1 512 1 b ) 27 (243 3x-7 = 817-2Question 17 (2 points) The following data gives the population in a town over a period of 25 years. Year (n) 5 9 13 17 21 25 Population 18 897 22 453 25 981 32 987 40 019 45 109 59 980 (P) a) State the exponential regression equation, rounding parameters to the nearest thousandth, where necessary. (1 mark) b) Using your regression equation, determine the number of whole years it will take the population to reach at least 70 000 people. (1 mark)Question 16 (2 points) Determine the exponential function represented by the graph below. Show all calculations involved for full marks. (2 marks) 12- (-2,6) 4. (0,1.5) -2