Tolong di jawab dong kaka kls:)​

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Tolong di jawab dong kaka kls:)​

Tolong di jawab dong kaka kls:)​

Jawaban:

60+65+70+75+80+85+90=525

525:7=75

jadi rata ratanya adalah 75

Jawaban:

[ (60×2) + (65×5) + (70×9) + (75×10) + (80×4) + (95×8) + (90×2) ] : 40

= 3.085 : 40

= 77,125