Johnny bought a crystal vase originally priced at $100 but on sale for 80% off. after 5% sales
tax, what was the total cost?

$21

Explanation:

Crystal Vase was originally priced as $100

80% off: 80% = 80/100 = 0.80

100 x 0.80 = 80

Subtract the amount that is off from the original amount:

100 - 80 = 20

Add sales tax. Sales tax is 5% or 0.05 of the amount.

20 x 0.05 = 1

20 + 1 = 21

$21 is your answer.

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TRUE

Explanation:

Value can be defined as the thing for which an customer is willing to pay the price. It is the activity on any shop floor or business for delivering the product or service to the customer for which the customer is ready to pay the price for it.

If the customers does not wish to pay the price, then there is no value.

So inside a factory, in a shop floor, moving a part from one place to another for making a product that the customer is willing to pay is a value added activity. But excess movement or transportation of product does not any value to it, it is then considered as a waste.

Also storing of products is a non value activity as storing a product will not help the customer in any way and a customer will not pay for a product when it is stored and is of no use to the customer.