Which of the following is always rational a: the sum of two fractions b: the product of a fraction and a repeating decimal c: the sum of a terminating decimal and the square root of a perfect square d: the product of a repeating decimal and the square root of a non-perfect square

I'm not sure but im gonna say its A

answ9x x 3=

step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: