Answer:
Well if you were to fund out what the numbers of the variables are, you would have to multiply it by 50, then you are to divide THAT by two to hey your answer
Adult ticket=£17 and child ticket=£9 hope this helps
Carl is 2 yrs older than bob. Because Alan+Carl is 2 more than Alan+bob
So bob=16 and Carl is 18
16+18=34
And Alan is 24
The first choice.
The equation of this first line is -2, and since there is an open circle, it is not equal to -3.
The equation of the second line is -x-2, and there is a closed circle, so it includes -3