...just write the angles that are congruent...And it says this is middle school,but this is elementary school problems...
1). 2x-1>0
2x>1
x>½
2) 21-3y<0
-3y<-21
y>7
3) 5-3c>80
-3c>75
c<-25
Answer:

Step-by-step explanation:
Start by simplifying the denominator of the fraction. When multiplying exponents of the same base, you can add the exponents. This is also known as the product rule.

["a" is the base, and "x" and "y" are the exponents]
Using this we find...

When dividing exponents of the same base, you can subtract the exponents. This is also knows as the quotient rule.

Using this we find...

C. s is your answer.
The sum of 2 angles on a straight line (supplementary angles) is 180°. Vertical angles (opposites where a line intersects) are equal.
The upper left and lower right angles where p crosses the other lines (q, r, t) are 105°.
180 - 105 = 75°
So the upper right and lower left angles are 75°. The lower left angle where p intersects s is 85°, so it is not parallel to the others.
Please let me know if you have any questions.