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13.5
What is the common ratio?

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

What ia the sum if the first 7 terms of the geometric series

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i