Answer and Explanation
Your Answer is
Correct Answer is K
Explanation
According to 49a=7, we know that a=1/2, because 34=81, so a+b=4, b=7/2
Your Answer is
Correct Answer is K
Explanation
According to 49a=7, we know that a=1/2, because 34=81, so a+b=4, b=7/2