1) What is the symbol for pi?

2)Which inequality shows that 2 is greater than 1 but less than 3?

3)Which fraction represents the decimal 0.75?

4)Cain and Bob collect 54 apples off the apple tree. Bob and Cain decided to share half the collected apples with each other. If Bob has ½ and Cain has ½ the amount of apples, how many apples do each of them have?