30. what is the selling price of an article that lists at $1,500 subject to discounts of 40%, 25%, and 10%? (you may use the method described in “check your selling price.”) 31. what is the discount on $640 if the discount rates are 25%, 10%, and 5%?

1500-40%= 900

1500-25%= 1125

1500-10%=1350

640-25%= 480

640-10%=576

$640-5%=608

Step-by-step explanation:

In order to calculate this you just need to mutliply the cost of the products by the amount that is not in disscount, for example the 1500 product has a disscount of 25% that means that the final cost will be 75% so 1500+.75=1125 and taht would be the cost.

The same with all of the other prices,  you taje the original price and multiply it by the decimal final percentage price, and you get the final price.

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.