A backpack that sells for $42.00 is on sale for 25% off.

How much money will you save?

$10.50

Step-by-step explanation:

To find how much is off the regular price, we need to convert the percent into a decimal. 25% is the same as .25

42 • .25= 10.50

(or 42 times .25 equals 10.50)

Thus, we save $10.50

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.