Halle cada suma o Diferencia emplo: 6.4+50= 6.4
50.0

6.2-0.77=

19-4.3

7.4- 0.3

0.67+71

3.2+0.72

88-9.2

0.45+69

0.89-0.37

58+0.47

6.6+6.9

84-0.79

7.2+3.5

28+0.18

6.6+60

ayuda por favor
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In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points