Sonya buys four pairs of shoes on sale do buy one he on 50% off the sales tax is 6.5% if the original price for each pair of shoes was 35$ how much does sonya pay for the four pairs of shoes

You take $35 dollars and take 56.5% off which is 19.775. We round up the nearest one hundreth and you would get 19.78. 35 minus 19.78 is $15.22

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