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see explanation

Step-by-step explanation:

(a) No

12.75 + 12.75 = 25.5 ≠ 0

(b) No

= 0.5 and

0.5 + 0.5 = 1 ≠ 0

(c) Yes

The absolute value always gives a positive value , so

| - | = , and

- = 0

(2)

note + (- ) is equivalent to - , that is subtraction

- 13 + (- 5) = - 13 - 5 = - 18

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation:

step-by-step explanation:

for volume, add base x height x width