Answer:
$17
Step-by-step explanation:
First, round $85,39 to the nearest dollar:
85,39 ≈ 85
Then calculate the amount of the tip:

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I’m not sure but I think 8
Answer:
C
10% = (10÷100=1÷10)=2÷20=.10
Answer:
b) False
Step-by-step explanation:
This works for the bottom equation, but not the top equation:
1 = −1 + 2
1 ≠ 3[−1] + 6
−3
1 ≠ 3 [No Solution]
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90% of 130 is 117 because 10% is 13 and 13x9 is 117 so that is part a. 130-117 is 13 so that is part b. And part c is correct because 100%-90%=10%. I hope this is helpful.