D . All three have same volume
Answer:
I'm sorry I just need points!
Step-by-step explanation:
I think it might be r= -3
Step-by-step explanation:
remember the priorities of the different mathematical operations
1. brackets
2. exponents
3. multiplications and divisions
4. additions and subtractions
so,
14 + 14/7 = 14 + 2 = 16