Answer:
5
Explanation:
sub 45 into x
h(x) = h(45)
h(45) = 1/9(90-45)
= 1/9(45)
= 5
^^
90-45 = 45
45 x 1/9 = 5
45 x 1/9 is the same thing as saying 45/9, FYI
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