MATH 108 Summer 2017 Solve. 1) A croissant, a cup of coffee, and a fruit bowl from Kelley's Coffee Cart cost a total of $5.50, and a croissant costs twice as much as a cup of coffee. Kelley posts a notice announcing that, effective next week, the price of a croissant will go up 10% and the price of coffee will go up 15%. After the increase, the total price of the purchase will be $5.76. Find the cost of each item before the increase. 2) A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1white, and 2 red. They used 95 black, 100 white and 90 red wires. How many of each cable were made? 3) 3x - 6y = -39 4x + 6y = 74 4) -6x + 12y = -12 3x + 6y = 6 5) 2x + 2y + z = 14 2x - 3y - z = 3 3x + y + 4z = 10 6) 8x + 5y - z = 89 x + 6y + 8z = 65 -2x + y + z = -5 7) On an 18-hole golf course, there are par-3 holes, par-4 holes, and par-5 holes. A golfer who shoots par on every hole has a score of 73. The sum of the number of par-3 holes and the number of par-5 holes is 11. How many of each type of hole are there on the golf course? 8) Michael's bank contains only nickels, dimes, and quarters. There are 58 coins in all, valued at $ 4.40. The number of nickels is 2 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank