Which money calculations are correct? Select all that apply.
A 50 dollar item after 20% off costs 40 dollars.✓Bonne réponse
A 75 dollar item after 8% tax costs 81 dollars.✓Bonne réponse
A 60 dollar meal after adding a 15% tip totals 9 dollars.
A 100 dollar item after 10% off and then 10% tax costs 100 dollars.
Explication
A 20% discount on 50 leaves 50 × 0.80 = 40, and 8% tax on 75 gives 75 × 1.08 = 81. The 9-dollar figure is only the tip on 60, and equal 10% discount and tax multipliers produce 0.90 × 1.10 = 0.99 rather than one.