Pls help me with this question.
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If i have 20$ and i gave 5$ away how much i got

Write the expression as a single natural logarithm. 2 in a - 4 in y

As a salesperson you get $50/day and $3.60/each sales you make.if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.