Which expression is equivalent to four?
a. (10 – 4) + 2
b. 10 – 4 + 2
c. 10 – (4 + 2)
d. (10 – 4 + 2)

C. 10-(4+2) = 4

Step-by-step explanation:

You have to follow the P.E.M.D.A.S., this is:

P:Parentheses first.

E:Exponent next.

M:Multiplication.

D:Division.

(Multiplication and Division is whichever come first, from left to right)

A: Addition.

S: Subtraction.

(Addition and Subtraction is whichever come first, from left to right)

We are going to analyze every option:

A. (10-4)+2

First we have to solve the parentheses

Then this expression is not equivalent to four.

B. 10-4+2

We have to solve from left to right. The subtraction come first in this case, then the addition.

Then this expression is not equivalent to four.

C. 10-(4+2)

We have to solve the parentheses first, then the subtraction:

This expression is equivalent to four.

D. (10 – 4 + 2)

In this case we have to solve from left to right, first the subtraction then the addition.

Then this expression is not equivalent to four.

the correct answer is the second option

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll