Could someone please answer with a step by step explanation?

Express as a single fraction.

The least common multiple of 2 and 8 is 8. Convert 1 / 2 and 3 / 8 to fractions with denominator 8.

Because 4 / 8 and 3 / 8 have the same denominator, subtract them by subtracting their numerators.

Subtract 3 from 4 to get 1.

Multiply 4 and 1 / 8 to get 4 / 8.

Reduce the fraction 4 / 8 to its lowest terms by extracting and cancelling out 4.

The least common multiple of 4 and 2 is 4. Convert 9 / 4 and 1 / 2 to fractions with denominator 4.

Because 9 / 4 and 2 / 4 have the same denominator, add them by adding their numerators.

Add 9 and 2 to get 11.

Convert 2 to fraction 8 / 4.

Add 11 and 8 to get 19.

4096 bacteria

step-by-step explanation:

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.