Answer:
(c) the sample is amount of sleep the volunteers got in the study.
Step-by-step explanation:
sample: this is a small part that is intending to show what a big part is all about.
volunteer: a person who does something willingly.
Answer:
65,000 g is equivalent to 65 kilograms
Answer:
The cost store owner pay for the pair of jeans is <u>$42</u>.
Step-by-step explanation:
Given:
A store owner uses a selling price of 125% of the cost of an item.
If a pair of jeans has a sales price of $52.50.
Now, to find the cost price of the store owner pay for the pair of jeans.
Let the cost price of jeans be 
Sell price of jeans = 
Now, to get the cost price of store owner pay for the pair of jeans:
<em>As given the</em><em> </em><em>store owner uses a selling price of 125% of the cost of an item.</em>
According to question:



<em>Dividing both sides by 1.25 we get:</em>

<em>The cost price of jeans = $42.</em>
Therefore, the cost store owner pay for the pair of jeans is $42.