An item costs `x` dollars and then a 20% discount is applied. b) Sam says that 20/100x` will not work. Do

Step-by-step explanation:

Cost of item = x

Percentage discount = 20%

Discount on item :

20% * x

20/100 * x

0.2x

Cost of item after discount :

Initial cost - discount

x - 0.2x

0.8x

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

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