30-(11+(18-(48/8×2))+7)+15
= 30-(11+(18-12)+7)+15
= 30-(11+6+7)+15
= 30-24+15
= 21
Answer:
I am telling I am new to this
3,500 kilometers in one day
Answer: 2.5, 5.4
Step-by-step explanation:

I believe just 1 because an equilateral triangle can only be reflected on one line for the halves to be the same