Answer:
c. m∠P'Q'R' = m∠PQR
Step-by-step explanation:
Rotation is a rigid transformation. It does not change lengths or angles.
Answer:
it says 8
Step-by-step explanation:
Answer with positive exponent =
or 
Answer with negative exponent = 
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Explanation:
The rule we use is

If we multiply two exponential expressions with the same base, then we add the exponents.
The base for each is 5. The exponents 4 and -7 add to -3.
This means

To convert to a positive exponent, we apply the reciprocal to the base. We go from 5, aka 5/1, to 1/5.
So, 
Answer:
D
Step-by-step explanation:
A=20*20
Answer:
-11/20
Step-by-step explanation:

first you want to get a common denominator (number on the bottom)

now you can subtract the numerators (number on tope) (also don't touch bottom)
