Answer:
One solution
Step-by-step explanation:
I'm not sure about the first question.
Did you post the question correctly?
To find the tip of the bill. You will need to find how much of $86.40 is 20%. In this question, they're asking how much is the tip, not how much will the final price be.
When you multiply a percentage you move the decimal point 2 times to the left: 20. → .20
You would multiply $86.40 by .20
When you solve it 86.40 × .20 = 17.28
$17.28 is 20% of $86.40
$17.28 will be the amount he got for his tip.
Answer: the answers are -3 and -6
Step-by-step explanation:
(6.5 + p)/3
or
1/3(6.5 + p)
same answer written a different way