Answer
Only the first friend did it correctly.
Work Step by Step
When doing the problem (5-2)/n you must follow the order of operations.
Parentheses, exponents, multiply and divide, and then add and subtract.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - 1-1 Variables and Expressions - Practice and Problem-Solving Exercises - Page 9: 53
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