Unit 5. 18) Amy covered an old garden with gravel. She bought 500 kg of gravel, and it covered a plot with an area of 36 square meters.

How many kilograms of gravel did she use for each square meter?

I think the correct answer is option b.

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

the answer is 99.