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26 September, 02:43

I = 7n + 50.

A - 6

B-8

C-10

D-12

+4
Answers (1)
  1. 26 September, 02:45
    0
    We can substitute I with 120 since that's how much he made in one day.

    120 = 7n + 50

    ~Subtract 50 to both sides

    120 - 50 = 7n + 50 - 50

    ~Simplify

    70 = 7n

    ~Divide 7 to both sides

    70/7 = 7n/7

    ~Simplify

    10 = n

    Therefore, the saleman made 10 sales.

    Best of Luck!
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