Part a: subtract 48-30=18
Part b: i found it by subtracting 48 -30 because it says left over
Cross multiply? 9x2=18/3= 6
1.a3,b3 and c3 must be 2 digit number.
2. a3 must be greater than all the other number.
examples: a3-b3-c3=93-83-73
a3-b3-c3=43-33-23
I believe the answer is B bc. you can't learn your personality
5x+7y=105
There are four variants are possible
1. You sold 15 adult tickets
2. You sold 7 student tickets and 10 adult tickets
3. You sold 14 student tickets and 5 adult tickets
4. You sold 21 student tickets.