If the sales tax in your city is 4.7\%4.7%4, point, 7, percent, and an item costs \$164$164dollar sign, 164 before tax, how much tax would you pay on that item?

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.