What the answer to this 15x when x=3

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.

Find the sixth term of the following geometric sequence.

Of . 2x+2y+3z=5, 6x+3y+6z=6 3x+4y+4z=9