\[\sum_{n=1}^{7} 2(-2)^{n-1}\]
Answer:
$223.
Step-by-step explanation:
Let x be the original price of phone.
We are told that Terry sees this offer refurbished phone 35% off now only $78.
We need to find x such that 35% of x is 78. We can represent this information as:


Therefore, the original price of phone was $223.
Answer:
<em>Definition 1: The theory, methods, and practice of forming judgments about the parameters of a population and the reliability of statistical relationships, typically on the basis of random sampling.</em>
<em>Definition 2: The use of randomization in sampling allows for the analysis of results using the methods of statistical inference. Statistical inference is based on the laws of probability, and allows analysts to infer conclusions about a given population based on results observed through random sampling. Two of the key terms in statistical inference are parameter and statistic.</em>
Step-by-step explanation:
Hope this helps, have a good day. c;
Answer:
The answer is C. -336
Step-by-step explanation:
All you have to do is 25 - 39 = -14 x 24 = -336
Hope this helps :)
Step-by-step explanation:
60 × 60= 3600
I hope this is correct