#642 Calculating income tax for an individual
#644 Compounded annual increases over two years
#645 Reading data from an income and expense statement
#643 Determine percentage increase and ratio conversions
#646 Working with fuel prices and measuring consumption
#677 Calculating salary increases and retirement savings
#678 Calculating special tax on a retirement annuity lump sum
#679 Product costing, converting from kg to litres
#703 Calculating the cost of monthly hiring with probability