Solution:
Given that,
zahra earns $80 each day plus a 6% commission on her sale at an appliance store
zahra has $900 in sales
Find the commission amount
commission amount = 6 % of 900
[tex]commission\ amount = \frac{6}{100} \times 900\\\\commission\ amount = 54[/tex]
Zara earnings including commission amount = 80 + 54 = 134
Thus Zara earned $ 134 on friday including commission