4.
For f(1) we have x=1, which is in the range of the second case, 1≤x≤2
so we have f(1)=-(1)² = -1
Answer: f(1)=-1, third choice
5.
The intervals are closed on the right. So f(8)=360
Answer: 360 cents, third choice
Answer:
360 cents
Explanation:
Multiply 0.45 x 8. To get $3.6.
There are 360 cents in three dollars and sixty cents
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