Sophie works 4 hours a day, and earns a salary of $500.00 per month. She earns $10 for every extra hour that she
works. If she earned $650.00 last month, how many extra hours did Sophie work?
20
O 25
O 15
10

Respuesta :

Extra money earned = 650-500 = $150  since each hour she gets $10,  hours worked = 150/10 = 15 hours

she worked 15 extra hours