**Answer:**

**Step-by-step explanation:**

to find this all you need to do is divide the total price by the number of units you have. in this case 38.50 / 2 = 19.25 per pizza

Options:

H0 :

H0 : µ =12

H0 > 12> H1

None of these

Answer:

None of these

Step-by-step explanation:

The answer is

H0 : µ ≧ 12

Ha : µ<12

We formulate the null and alternative hypothesis here to state that battery life of the laptop lasts at least 12 hours(more than but not less, null hypothesis) or that it lasts less than 12 hours(alternative hypothesis).

The null hypothesis is the one being tested to know whether we would reject it or not in which case we choose the alternative hypothesis. To test the hypotheses, we do a t test using a significance level of say 0.05(95% confidence interval) and find our p value in order to compare and decide if the null hypothesis would be rejected or not based on statistical significance.

**Answer:**

We can check this two ways: distributing the -0.5, and plugging in a number for x.

First, we can check this by distributing the -0.5. Our equation becomes:

-1.5x -2.5 = -1.5x + 2.5

Clearly, this is not true. We can show this one more time by plugging in a number for x. I will use 2.

Now, we evaluate both sides and see if they are equal.

-3 - 2.5 = -3 + 2.5

-5.5 = 0.5

Clearly, this is not true. These expressions are not equivalent.

**Step-by-step explanation:**

How to change a decimal to a percent:

Let's take 0.25

Move the decimal 2 places to the right of where it is, and put a percentage sign there. 25%

How to change a percent to a decimal:

Instead of putting the percent 2 places to the right, move it 2 places to the left and put a decimal. 25%---> 0.25

I cannot help much with the other 2 besides examples:

3/4 ---> 0.75

0.50---> 1/2

After 6 days equation would be and answer

to represent before 6 days just put 4^5=1024