Ruby has a monthly salary of $1,800 and also earns 6% commission on her sales. If Ruby had $37,000 in sales last month, what were her total earnings for the month?

d.  $4,020

Step-by-step explanation:

The total earnings are the amount of commission added to a monthly salary. We already know the monthly salary but still have to find out the amount of commission. Ruby gets a 6% commission of her sales, which is $37,000 of that month. The amount of commission she get will be: 6% * $37,000= $2220

The total earnings it will be:

salary + commision=

$1,800+ $2,220 = $4,020

part a: 1.08

part b: 27.59