For this item, any answers that are not whole numbers should be entered as decimals, rounded to the hundredth.
marissa's fashions purchases designer boots from a manufacturer for $50.88 per pair. marissa then adds a certain amount to the price of the boots as a markup when she sells them in the store. the total cost for a customer buying the boots at the store is $90.10. this includes a 6.25% sales tax that is added after the markup.
the percent of markup before tax is about
%, which is a markup of $
per pair of boots.

67%

$33.92

Step-by-step explanation:

So a few things happen.  Starting at $50.88 there is a markup, so it is now y dollars.  Then a tax of 6.25% is applied to this y, which gets $90.10.  So we want to work backwards to find y.

First, we want to find a number that when it gets a tax of 6.25%, or .0625, we get 90.10.  So it's a pretty simple algebra problem.

90.1 = y * 1.0625

90.1/1.0625 = y

84.8 = y

So now we know, before tax the store charges $84.80.  if you don't get how I did something let me know.

Now, we want to know the percent increase from $50.88 to $84.80.  We know it is an increase of $33.92.  Well, we can use that.  33.92 is what percent of 50.88.  or an algebra way of writing it is 50.88x = 33.92 So let's solve that real quick.

50.88x = 33.92

x = 33.92/50.88

x = 2/3

So now, in conclusion, startign with a price of $50.88, the store marks it up by 2/3, which is 67% more or less, and then there is a 6.25% sales tax

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: