10% OFF! What was the original price of a set of dishes whose sale price is $216?

240

Step-by-step explanation:

If we get 10% off, we still have to pay 100-10 = 90%

Let x be the original price

x *90% = 216

.90x = 216

Divide each side by .90

.90x/.90 = 216/.90

x =240

The original price is 240

  $240

Step-by-step explanation:

The sale price is 90% of the original price, so ...

  $216 = 0.90 × original price

  original price = $216/0.90 = $240

The original price of the set of dishes was $240.

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

table 3 represents a direct variation function. : )