Question says that "A salesperson earns $450 per week plus 15% of her weekly sales. "
So the expression representing her earnings is given by 450 + 0.15x.
Now we have to find the equation/inequality that describes the sales necessary for the salesperson to earn at least $600 in one week.
at least $600 means 600 or more
so that means earning (450+0.15x) is equal to 600 or more than 600
so required inequality will be:
450+0.15x≥600.
Hence correct choice for the final answer will be choice which matches with 450+0.15x≥600.
