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s344n2d4d5 [400]

2 years ago

6

Original cost: $1.25;markup %:80%

1 answer:

Sholpan [36]2 years ago

8 0

Hey!

Find 80% of the original cost:

1.25 * 80% = 1

1.25 + 1 = 2.25

ANSWER: $2.25.

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worty [1.4K]

By the chain rule,

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