Respuesta :
$150 - $10x - $20y ( the amount she is left with )
Then dividie by 10
150-10x-20y/10
10(15-x-2y)/10
15-x-2y
And so the answer to your question is 15-x-2y
Then dividie by 10
150-10x-20y/10
10(15-x-2y)/10
15-x-2y
And so the answer to your question is 15-x-2y