12^2=144
144 is divided by b which also is an odd interger, there only 2 numbers : 1 and 3
if b=3, a^2=48, then there will be no a available
if b=1 , a^2=144, then a is 12 and 12 can not be divided by 9
The answer is D
X^2-9=0 add 9 to both sides
x^2=9 take the square root of both sides
x=±3
Answer: adult ticket : 5.50
Student ticket : 2.75
Step-by-step explanation:
Answer: 207
Step-by-step explanation:
