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2,4,6,8

 2) 26      4) -22      6) 28        8) -12

Step-by-step explanation:

Replace the variable with its given value.

Then use PEMDAS to evaluate the expression.

Parenthesis

Exponents

Multiplication, Division

Addition, Subtraction

2) 5y - 3z + 4y - 1z - 3y         ; y = 3, z = -2

  5(3) - 3(-2) + 4(3) - 1(-2) - 3(3)

= 15   - (-6)    +  12   - (-2)  - 9

= 15   +  6     +  12    +  2  - 9

= 26

4) -k² - (3k - 5n) + 4n             ; k = -1, n = -2

  -(-1)² - [3(-1) - 5(-2)] + 4(-2)

=  - 1    - [  -3  -  (-10)]  + (-8)

=  -1     - (  3   +    10)    -  8

=  -1     -13                    - 8

= -22

6) 3(2c + d) - d                     ; c = 5, d = -1

   3[2(5) + (-1)] - (-1)

=  3(  10   -   1)  +  1

=   3(9)             + 1

=    27              + 1

=   28

8) 4(2m - n) - 3(2m - n)        ; m = -15, n = -18

   4[2(-15) - (-18)] - 3[(2(-15) - (-18)]

=  4(  -30  +  18 )  - 3( -30   + 18 )

=   4( -12)             - 3(-12)

=      -48               + 36

=     -12

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!