Answer:
<em>122.4</em>
Step-by-step explanation:
<em>Just Divide.</em>
534. 75
let the income of kellys sister be x
kellys income=x+15% of x
=23x over 20
x+23x/20=999. 75
or, x=465
kellys income=23×465/20
=534. 75
The following attached is the solution. Hope it helps.
