Suppose you bought something that was priced at $6.95, and the total bill was $7.61. What is the sales tax rate?

answer:

sales tax of approximately .095 or 9.5%

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

4+4+2x

or

2x+8

step-by-step explanation: