Assignment
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determining the final cost of an item
the tax rate as a percent, r, charged on an item can be determined using the formula - 1 =
r, where c is the final cost of the item and p is the price of the item before tax. louise rewrites
the equation to solve for the final cost of the item: c = p(1 + r). what is the final cost of a $40
item after an 8% tax is applied?

$43.20

Step-by-step explanation:

We use the formula for the final cost of the item:

where r is the percent tax rate in decimal form (8% therefore translates as 0.08 for our case)

Therefore the final cost of the item is $43.20

what is the information provided?

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.