The meaning of the decimal representation of a number 0.d1d2d3 . . (where the digit i is one of the numbers 0, 1, 2, . ., 9) is that 0.d1d2d3d4 . . = d1/10 + d2/10^2 + d3/10^3 + d4/10^4 + . . show that this series always converges.

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.