The mean amount for all of the invoices for your company last month is not known. Based on your past experience, you are willing to assume that the standard deviation of invoice amounts is about $260.

a. If you take a random sample of 100, what is the value of the standard deviation for x?
b. Using the 68-95-99.7 rule, the probability is about 0.997 that x is within what amount of the population mean µ?

597

step-by-step explanation:

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%

could u provide us some answer choices or hmm idk maybe a table for us to anser with ? ?

any of them that add up to 180 degrees.