The first one would be 166.4x you would Simplify it the next one would be 499.2x would you add them than simplify them too,and the 3rd one is 46.796x the last one is 1996.8<span>x</span>
Answer: -9
Step-by-step explanation: it is -9 because 3x-3 equals -9. I hope this will help!
45.90*0.05=2.295.
The answer is $2.30 when you round it off.
Answer: Option A.
Step-by-step explanation:
The angle ∠QST and the angle ∠QSR are supplementary.
If two angles are supplementary, means that the sum of both angles is 180 degrees.
Thenrefore

Solve for the angle ∠QSR and substitute the value of the angle ∠QST to find the value of the angle ∠QSR. Then, solving the equation, you get:
Then
is:

This matches with the option A.
Answer:
-12.
Step-by-step explanation:
-(-2а + 13) + (-9а - 2) - (-7а - 3)
= 2a - 13 - 9a - 2 + 7a + 3
= 9a - 9a - 13 + -2 + 3
= -12.