<span><u><em>
Answer:</em></u>
They are not equal
<u><em>
Explanation:</em></u>
<u><em>Let's take a look at each one of them separately:</em></u>
</span>

<span> : This fraction is in the simplest form. It is equivalent to 0.2
The fraction is formed by dividing one part over five
</span>

<span> : This fraction is not in the simplest form. We can divide 5 by 5 and the answer would be 1. Therefore, </span>

<span> is equivalent to 1
</span>

<span> : This fraction is not in the simplest form. We can divide 5 by 1 and the answer would be 5. Therefore, </span>

<span> is equivalent to 5.
Based on the above, we can cnfirm that 0.2 , 1 and 5 are not equivalent.
Therefore, the given fractions are not equivalent
Hope this helps :)</span>
Answer:
The mean of the total repair time is 150 minutes.
The variance of the total repair time is 725 minutes^2.
Step-by-step explanation:
To solve this problem, we have to use the properties of the mean and the variance. Our random variable is the sum of 3 normal variables.
In the case, for the mean, we have that the mean of the sum of 3 normal variables is equal to the sum of the mean of the 3 variables:

For the variance, we apply the property for the sum of independent variables (the correlation between the variables is 0):

The first one should be the answer
Last one is A, (3,4) and (5,12) because that's where the lines meet therefore it is a solution and this graph consists of two solutions.
First lets write the equation for both DVD Phones and Moblie Phones
Moblie Phones= 2x+5.2
DVD Phones= 2x+2
The answer is never because the lines are parallel to each other because they have the same slope.