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OpenStudy (anonymous):
evaluate a + b when a=-15.4 and b=-13.5
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OpenStudy (anonymous):
-28.9
OpenStudy (zale101):
replace a by -15.4 and b by -13.5 -15.4+(-13.5) -15.4-13.4?
OpenStudy (zale101):
-15.4-13.4=?
OpenStudy (anonymous):
-28.9
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