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Mathematics 9 Online
OpenStudy (anonymous):

write and simplify an expression to find how altogether many hours Carols' Sue' and Cara volunteered

OpenStudy (anonymous):

carlos was 16 hours

OpenStudy (anonymous):

sue was4 more hours than carlos

OpenStudy (anonymous):

and cara was 7 more hours than carlos

OpenStudy (anonymous):

Solve the following for carlos, sue and cara: {carlos = 16, sue = carlos + 4, cara = carlos + 7} {carlos=16,sue=20,cara=23}

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