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Interest, savings, returns, and inflation.
Mortgages, repayment, DSR/DTI/LTV, and jeonse.
Take-home pay, severance, insurance, and taxes.
Discounts, tips, unit price, and margins.
Body metrics, nutrition, and training.
Percentages, fractions, algebra, and sequences.
Area, volume, and surface of plane and solid shapes.
Averages, spread, combinations, and odds.
Length, weight, temperature, pressure, and more.
Data size, screens, color, and network speed.
Circuits, resistance, PCB, and signals.
Ages, D-day, date math, and time zones.
Paint, tile, wallpaper, flooring, and concrete.
Fuel cost, economy, tires, and vehicle tax.
Bills, delivery, photos, and odds and ends.