Answer:
15 percent
Step-by-step explanation:
- 30/200=15/100
- 15/100=0.15
- 0.15=15 percent
The answer is the last choice 2 1/2
Since the formula for the area of a circle is Pi x r squared, the area would be 81 x Pi (you teacher may want you to use Pi as 3.14 or put it in your calculator).
I don't know what your choices are, but I did the questions for you.
R=D/2, R=12, R=radius,
SA= 4 times 3.14 12 times 12, so,
SA=1809.557368, if you round it to two decimal places, it'll be,
1809.56, so the answer is 1809.56in. squared.
Do the opposite of division which is multiplication. 2.6x2=5.2
I hope I did it correctly and that it benefits you ^^