Answer:
Step-by-step explanation:
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A.
You have to $129.95 * 5 because 5 were purchased and that would give you $649.75 then you add delivery fee $76.20 for delivery fee.
Price of DVD player ≥ $150
Saved = $80
Amount needed = $150 - $80 = $70
Saving per week = $10
Let x be the number of weeks needed:
80 + 10x ≥ 150
10x ≥ 150 - 80
10x ≥ 70
x ≥ 70 ÷ 10
x ≥ 7
Answer: She needs to save for for at least 7 weeks.