the first step is to isolate A which gets 39.59a+45=44.99
now get A and only A
39.59a=-.1
now divide both sides by 39.59 getting A= -0.00252589
To prove the QRST is a parallelogram.
Step 1: Given
and 
Step 2:
are alternate interior angles.
Definition of alternate interior angles
Step 3: Alternate interior angle theorem:
If two parallel lines cut by a transversal then the alternate interior angles are congruence.
QR and TS are parallel lines cut by QS.
Therefore, 
Step 4: Reflexive property of congruence:
Any geometric figure is congruence to itself.
Therefore, 
Step 5: By the above steps
(Angle),
(Angle) and
(Side)
Hence
(by ASA congruence theorem)
Step 6: Corresponding parts of congruence triangles are congruent.

Step 7: Property of parallelogram:
If one pair of opposite sides are both parallel and congruent, then the quadrilateral is a parallelogram.
Hence Quadrilateral QRST is a parallelogram.
3x + 2x - x = 4x so just make something that is equal to 4x also. Like 5x - x.
Hello there,
So he has two cars. Each comes in 3 colors and either automatic or standard.
So let's say he has got the convertible. He can get the white automatic or a white standard. Same as red and blue. So there are 6 choices for 1 car.
So let's say he has got the hatchback. He can get the blue with automatic or standard. That goes with white and red as well.
So if he has 2 cars and 6 choices for 1 car he has 12 choices to choose from.
Hope this helped!
6 is in the ones place
.5 is in the tenths place
and the 4 in 6.54 is in the hundredths place