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
Answer:
About $0.35 per bottle.
Step-by-step explanation:
8.44 / 24 = .3516
x = 19!
Proof:

For the other equation,

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The finance charge is the product of the given numbers.
($30)*(0.07%)*(30) = $0.63