$10+$5=15
$75/$15=5
Hours = 5
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30b³ + 20b² + 15b + 10 = ...(:5)
6b³ + 4b² + 3b + 2 =
6b³ + 3b + 4b² + 2 =
3b(2b²+1) + 2(2b²+1) =
(2b²+1)*(3b+2)
Answer:
see below
Step-by-step explanation:
to express x as a function of y we need to form this

and to express y as a function of x

so we work
1)

2)
