You want a new sound system to go with your new television. If you saved $30 for the sound bar that had a 21% discount. What was the original price of the sound bar before the discount?

$142.86

Step-by-step explanation:

In order to know the original price of the sound bar, it is best to write the problem above into a mathematical sentence first.

Given: $30 = the amount you were able to save

          21% = the discount (this means that $30 is the 21% discount)

Let x be the original price of the sound bar.

The mathematical sentence is:

$30 is 21%(0.21) of x

x=

x= $142.857 or $142.86 (once rounded off to the nearest hundredths)

So, the original price of the sound bar before the discount is $142.86

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3