Hello!
To find the hours she must work to have a total of 358 dollars, we would need to create a simple equation, and solve for the number of hours.
358 = 9.50h + 35
In this equation, h is the number of hours.
358 = 9.50h + 35 (subtract both sides by 35)
323 = 9.50h (divide both sides by 9.50)
h = 34
Therefore, Dora must work 34 hours to have a total of 358 dollars in her savings account.