5 points Four different kinds of shirts normally cost the same price of $19.99.
Shirt A is on sale for 25% off, and shirt Bis on sale for $5.00 off, and shirt
C is on sale for "buy one, get one half off, and shirt Dis 0.7 of the original
price. If Steven wants to buy two shirts of the same kind, which shirts
will give him the best price?

by looking they cost bill

Step-by-step explanation:

The very first thing you should consider when pricing your t-shirts for retail is how much it costs to produce them. Of course, you want to keep costs somewhat low, but not at the expense of quality. Something we’ve found to be universally true is that people are willing to pay more for a retail quality t-shirt, rather than a shirt that’s ill-fitting and has a rough feel. So paying $1 or $2 more on the front end might enable you to charge $5–10 more at retail, plus you'll create customers who love your product, tell their friends about it and come back for more! That's how you build a successful brand.

That being said, don’t be afraid to price your t-shirts for what they’re worth. If you’re selling a high-quality t-shirt, make sure your price communicates that. If you’re pricing your t-shirts for less than they’re worth, your customers are going to perceive them as less than they’re worth. So price them as they should be priced, and let your product speak for itself.

( carry learning )

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional