Harvey has a bank balance of $448 at the start of the month. If he withdraws $20, what is his balance?

A) $408
B) $420
C) $428
D) $468

pls ask

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.

i would say c

step-by-step explanation: