3x *15
possibly idk why im on this site XD
1.

The base can't be negative, therefore
.
2.

3.

Answer:
Total surface area = 73.56506
Step-by-step explanation:
I do not know what shape you are trying to find the total surface area for, but I hope this is correct & helpful.
Answer:
uhh dude what's the question?
Step-by-step explanation:
.5 as a decimal and 50% as a percent