Answer:
From the looks of the graph, it seems that the teacher earned either $40 a hour or $20 a hour.
Step-by-step explanation:
Answer: 10n^2 - 10
Step-by-step explanation:
(5n - 5)(2+2n) becomes (5n-5)(2n+2)
= (5n)(2n) + (5n)(2) + (-5)(2n) + (-5)(2)
= 10n^2 - 10
113.1
(If it needs to be rounded)
