Answer:
75
Explanation:
Let the initial cost of oil be x. After the first year, the price of oil is 1.5x. After the second year, the price of oil is 0.5 ∙ 1.5x = 0.75x.
This is 75 percent of its price at the beginning of the first year.
Um 150 x 2 divided by 4 i believe
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