It’s the 4th option
<—> this sign thingie represents the interchanging sign like x=y y=x
Answer: 19.77%
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
The formula to calculate z-score is given by :_
For x= 80, we have
The P-value = 
In percent , 
Hence, the approximate percentage of the test scores during the past year exceeded 80 =19.77%
The better option will be at DiscountsRUs 40% off on any purchase.
<h3>What is the discount?</h3>
The amount of money which is reduced on any product below its actual selling price is called the discount.
here we have two offers from the two stores Dominic had a coupon for 15 off his purchase at Save4You. At DiscountsRUs, there was a sale of 40% off on any purchase.
For a Dominic, the discount is fixed for any purchase that is if you purchase a $50 product or a $1000 product you will be getting only a $15 discount.
Now for the second store, the discount is given as 40% so if you purchase $50 your discount will be $20. If you purchase $1000 so 40% discount will be $400.
Therefore better option will be at DiscountsRUs 40% off on any purchase.
To know more about Discount follow
brainly.com/question/1548141
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-The decimal is .66 repeated
- This is a proper fraction, meaning it doesn't have a whole number next to it.
- This isn't a whole number
