Answer:
The answer is 457
Step-by-step explanation:
You set up an equation as
10a+7c=6459
a+c=783
c= child
a= adult
then you simplify to 3a=978 by taking out one of the values. You get a - 326.
783-326=457 so there is your answer
Ali is 72%
Zain is 64%
Ahmed scored 73%
So Ahmed Scored more
Moving back will be indicated by a negative value, forward will be positive.
- 5 + (-3) + 3 is the correct option.