Hey there!!
Okay so let's start simplifying this :D
-| -2 + 9| <---- remember that the "vertical bars" are absolute value signs
Absolute value signs will make any values within them into a positive value even if it was negative in the first place
-| 7 | <---- first simplify what is within the absolute value signs
<u>- 7</u><u /> <----- this is your final answer!!!
I hope this helps you! ^__^
Finding 4 x 384 helps you find 4 x 5384 because once you have the answer to 4 x 384, you can then just add the answer to 4 x 5000 to the answer of 4 x 384.
4 x 384 = 1,536
4 x 5000 = 20,000
20,000 + 1,536 = 21,536
Cost of Television = $1420
Cost of Television after store sale =$1022.40
Drop in price= 1420-1022.40= 397.60.
Price taken off = $ 397.60.
Percentage taken off= 
= 
Percent off = 28%.
No, because the sum of two sides must be larger than the third.
Answer:
x=-16
Step-by-step explanation:
6x+12=4x-20
2x=-32
x=-16