Answer:
A
Explanation:
Let's say x represents adult tickets, and y represents child tickets.
We know that 2 adult tickets, x, and 2 child tickets, y, added together total $26. This can be written as:
2x+2y=26
We also know that 2 adult tickets, x, and 3 child tickets, y, added together total $31. This can be written as:
2x+3y=31
So, our system is:
2x+2y=26
2x+3y=31
Therefore, choice A is correct.
Isotope is the study and application of stable and radioactive isotopes to geological processes and their time scales.
<span>To the Northeast of Africa is Europe. Of course
Europe is extremely large, and can be divided into eastern, western,
northern, and southern Europe. But it's all still Europe. </span>
so developed it's the highest quality of life,next would be newly industrializing has the second quality of life next would be developing country,and the lowest quality of life would be least developed country correct me if I'm wrong hope it helps,I'll explain u later
The circumference is the length of the outer line of the circle. The formula is
-
C = 2πr
C = 2 x 3.14 x 1.5
C = 9.43 km