Siti earns $12.50 per hour. She works 3.5 hours on Monday and twice as many hours on Tuesday. She spends $28.40 on transport that week. How much money does she have left after paying for transport?
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Worked Solution
Step 1: Monday hours = 3.5 h. Tuesday hours = 3.5 × 2 = 7 h.
Step 2: Monday earnings = 3.5 × $12.50 = $43.75.
Step 3: Tuesday earnings = 7 × $12.50 = $87.50.
Step 4: Total earnings = $43.75 + $87.50 = $131.25.
Step 5: After transport = $131.25 − $28.40 = $102.85.
Correct answer: $102.85
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