A student is finding the total cost C, including sales tax, of a book that cost $9.95. The sales tax rate is 9%.Find the student's mistake and correct it. c=1.9 × 9.95
c≈ 18.91
c≈ $18.91

Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.