48 inches if she grows 4 inches per year and they are asking you how tall she will be in 3 years then: 4x3=12 inches/year times the years growing and then" 36+12 the actual inches plus the ones that will grow in 3 years 48 inches will be how tall it will be in 3 years
Explanation: you take the amount she makes for one hour (12.50), times it with the hours she works in a day (7), and then times it with how many days she works (5).