Lauren rodriguez earns $8.35 per hour as a swimming instructor. how many hours per week must she work if she wants to earn approx. $190,000 per week?

It´s impossible ear $190,000 per week with this ratio, I believe she wants to earn appox. $190.000 per week=$190 per week 

ratio=$8.35 / 1h
you can solve this problem by the rule of three.

$8.35 1 h
$190  x

x=($190 * 1h) / $8.35=22.754...≈23

Answer; she need work 23 hours per week .