<PRE><B>Question 513249</B>
Evaluate each expression. Name the property used in each step.
1). (8-2^3)+21 = (8-8)+21 = 0+21 = 21
------------------------------ 
2). 3(1/3)•9 = = 1*9 = 9
------------------------------
3). (5/(3•1))3/5 = (5/3)(3/5) = 1
---------------------------------
4). 18+35+32+15 = (18+32) + (35+15) = 50 + 50 = 100
-----------------------------------------
5). 0.25•7•4 = (1/4)*4*7 = 1*7 = 7
=======================================
Cheers,
Stan H.
==============
</PRE>