Answer:
b = -8
Step-by-step explanation:
crossmultiply
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Answer:
the last one
Step-by-step explanation:
A. f(b) = 3+b
b. f(x) = (x+3)²
c. f(x) = (x+3)/(12-x)
d. f(x) = x⁵-4x+6
e. f(x) = -45
f. f(x) = x