SYMBOL$@#(c)Meaning+-×÷Given: 75 (c) 5 $ 20 @ 12 # 3After replacing the symbols by their meaning, we get:75 ÷ 5 + 20 - 12 × 3= 15 + 20 – 36= 35 – 36= - 1Hence, ‘-1’ is the correct answer.