1.evalute the expression -8 + 15 = 7 is this answer correct?

2.evaluate the expression 19+(+4) = 23 is this answer correct?
3.Evaluate the expression (13) (-4) (-6) = 312 is this answer correct?
4. evaluate |10|+ |-2| =8 is

2 answers

1,2,3 correct.
4) abs(-2)= +2
2+4-2=4
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