If Jerry bought four DVDs for $25.20 and you would like to know what was the unit rate, you can calculate this using the following step:
$25.20 / 4 = $6.30
Result: The unit rate was $6.30.
SOLUTION:
Case: Hypothesis testing
Step 1: Null and Alternative hypotheses

Step 2: T-test analysis

Step 3: t-test with the significance level

Step 4: Comparing

So tail to reject the null hypothesis. There is enough evidence at a 0.05 level of significance to claim that the mean spent is greater than P127.50.
Final answer:
Yes, there is evidence sufficient to conclude that the mean amount spent is greater than P127.50 per month at a 0.05 level of significance.
Answer:
2.8
Step-by-step explanation:
Plugging the square root of 8 into a calculator gives you 2.8 rounded to the nearest 10ths place.
This is not a perfect square.
There are 2 formula to find the circumference of a circle.



is approximately 3.14
r is radius
D is diameter
and just a side note,

Hope that formula helps you :)