The scale factor is 1/2.
Is that your question?
Scale factors?
Answer:
x = 10
Step-by-step explanation:
(4x)° & (3x+10)° are corresponding angles. If both the angles will be equal , then we can say that A║B.

If the value of x will be 10 , then it will make A║B.
Step-by-step explanation:
I hope this is ur required answer
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Answer:
-5
Step-by-step explanation:
Using rules of exponents we can change this equation to
y ^ (-9 * b) = y^45
-9*b = 45
b = -5