SOLUTION: Please, help.... Evaluate each expression. Name the property used in each step. 1). (8-2^3)+21 2). 3(1/3)•9 3). (5/(3•1))3/5 4). 18+35+32+15 5). 0.25•7•4 Please help me on

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Please, help.... Evaluate each expression. Name the property used in each step. 1). (8-2^3)+21 2). 3(1/3)•9 3). (5/(3•1))3/5 4). 18+35+32+15 5). 0.25•7•4 Please help me on      Log On


   

Question 513249: Please, help....
Evaluate each expression. Name the property used in each step.
1). (8-2^3)+21
2). 3(1/3)•9
3). (5/(3•1))3/5
4). 18+35+32+15
5). 0.25•7•4
Please help me on these 5 questions. As soon as you can!
Thank you so much.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
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.
==============