Answer:

Step-by-step explanation:


Answer:
Step-by-step explanation: 85 students and 80 adults
<h3>The interest rate is 8 % if your balance on an investment of 857 dollars at the end of six years is 1268.36 dollars</h3>
<em><u>Solution:</u></em>
Given that,
Principal = $ 857
Amount = $ 1268.36
Number of years = 6
Rate of interest = ?
Simple Interest = Amount - principal
Simple Interest = 1268.36 - 857
Simple Interest = 411.36
<em><u>Use the formula,</u></em>

Thus the interest rate is 8 %
A) Increase. This is because the mean of the first two cars is smaller than the mean of all three cars.
b) Cannot be determined. Need more values.
c) Cannot be determined. Need more values.