Algebra
posted by Eve .
Hello. It's the beginning of the school year, and I've quite forgotten what I learned in PreAlgebra...The question in the text book is this :
Simplify each pair of expressions.
1. 36  8 ÷ 2
(36  8) ÷ 2
There are several problems like the one above. Under the same set of directions, though, some problems look like this :
7. 3(9+2)  8
__________
7
With only one problem.
So, what am I supposed to do?

And, once that's answered, the next set of directions don't make sense to me either.
Evaluate each expression for a = 3, b= 7, c = 4.
13. a(2bc)
?
Does evaluate just mean...Answer? 
I believe that I understand the directions, now. Thank you though. It'd odd  Jiskha homework help used to work so much more quickly, in past years. I wonder what happened. Anyways, thanks again, and good luck with the other questions.

This is a holiday weekend and many of our tutors are on vacation. Also the new hurricane has driven at least one of them out of his home.

Under the first two, do the operations in the correct order: Parentheisis, multiply, divide, add subtrract.
So on the first
36  8 ÷ 2, do the divide first:
364 then the subtract.
This will be a quite a different answer from the second.
Yes, on the last, it means evaluate. 
Alright. I apologize for my rudeness. Thank you.

15 n when n=9
Respond to this Question
Similar Questions

PreAlgebra 7th Grade
how do I simplify the following expressions by collecting like terms? 
Pre Algebra 7th Grade
How do I simplify the following expressions by collecting like terms? 
algebra
Why is it important to simplify radical expressions before adding or subtracting? 
Algebra 2/ Radicals
Why is it important to simplify radical expressions before adding or subtracting? 
algebra honors
I was placed into algebra honors instead of advanced math.. I am in 7th grade.. I have to maintain an 80% for the entire year or go to virtual school all summer.. My question is: Is there a special technique, formula, or very useful … 
ALGEBRA
Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1. text((a) ) ln\(3\)2ln\(4\)+ln\(8\) text((b) )ln\(3\)2ln\(4+8\) text((c) )ln\(3\)2(ln\(4\)+ln\(8\)) 
Math
Hello! I am needing some help on Algebra! It is hard ! Can you explain how to Simplify Algebraic Expressions? 
Algebra
A Car is moving at an average speed of 60 km/h. Find the algebraic expression for the kilometer it would travel in y minutes. Comment on this question: Hello, for me, algebra is one of the hardest subjects at school. Most of the time … 
Math/Pre Algebra HELP ME!
1. What are the coefficients in the polynomial 5x^2 + 2x  4? 
PreAlgebra
Use properties of equality to simplify each of the following expressions so that you can simplify them in your head. Identify the properties used and describe how you used them. 1. 4 • (–3) • 5