Answer:
3^8 and 6,561
Explanation:
1) Calculate, 3 to the power of what is 27? 
Make a table of all of 3's powers until 10. i.e. 3^1 = 3, 3^2 = 9 ......
 You will find that 3^3 = 27 and 3^5 is 243
3) Use the formula x^m * x^n = x^m+n and substitue our value. 
It should look like this: 3^3 * 3^5 = 3^3+5 = 3^8
4) Make a table as described in step 2 and calculate all of 3's powers up to 10. Look at your table and you will find that 3^8 is equal to 6,561
5) The expression written as a power is 
3^8 and 
the value: 6,561
Enjoy :)