For the shaded bit all you need to do is 8.5 × 6.
if you are to get the other bit then do 8.5 × 8
if it is to be both then just do that and add them together
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.
Answer:
Slope is 4.8
Step-by-step explanation:

Answer:
Rounding to tenths
E: 56.8 %
F: 48.8 %
G: 44.9 %
H: 50.4 %
Step-by-step explanation:
Hope this helps!