Answer:

Step-by-step explanation:
Put negative exponents in the denominator to make them positive.




Answer:
4/49
Step-by-step explanation:
7-5 = 2
2/7*2/7 = 4/49
Answer:
No; they do not have congruent corresponding angles.
Step-by-step explanation:
Angle U is ...
180° -28° -70° = 82°
The "corresponding" angle in ΔVWX is ∠X = 92°. These are not congruent, so the triangles cannot be similar.
42%
You have essentially a fraction, 21/50, which gives you a decimal of 0.42, or 42%.
(Flipped a total of 50 times, of those, it landed red side up 21 times, so 21/50)