23. In Ontario, car was sold for $14950 including 15% HST. How much was the sales tax on the car? 24. How many Canadian dollars can you buy for US$518 if one Canadian dollar is worth US$0.74? 25. John annual incomes for 2015 and 2016 were 60,000 and 70,000 respectively. Given that consumer price index for the two years was 110.5 and 109.4 respectively. Compute John's real income for 2015 and 2016. 26. The apprised value of a property has increased 230 % since it was purchased by the present owner. The purchase prince of the property was $160,000, its apprised value at that time. How much is the current appraised value? 27. Media Marketing of Toronto, offers a two-day accommodation coupon for a Hilton resort in Alberta at a promotion price of C$216. If the exchange rate is C$1.18 per US dollar, what is the value of the coupon in U.S. dollar? 28. Solve each of the following systems of equations and check your answer. a. 2X+5y = 0 2X+2y = 6 b. 3x= -2- 3y Sy= 3x-38 29. Using algebra, find the slope and y-intercept of the lines represented by the following Equations. a. 9x+ 3y = 33 b. 1-1/2y =2x C. (x-2)(y+2) - xy = 8 30. A restaurant is offering two dinner specials. The difference between seven times the orders for the first special and four times the orders for the second special is 12. The sum of three-fourths of the orders for the first special and two-thirds of the orders for the second special is 21. Find the number of orders for each special