3*3(66:74)-9

To solve the expression \(3 \times 3 \left( \frac{66}{74} \right) - 9\), follow the order of operations (parentheses, exponents, multiplication and division from left to right, addition and subtraction from left to right).

1. First, calculate the division inside the parentheses: \[ \frac{66}{74} \approx 0.8919 \]

2. Next, multiply by \(3 \times 3\): \[ 3 \times 3 = 9 \]

3. Then perform the multiplication: \[ 9 \times 0.8919 \approx 8.0271 \]

4. Finally, subtract \(9\): \[ 8.0271 - 9 \approx -0.9729 \]

Therefore, the result of \(3 \times 3 \left( \frac{66}{74} \right) - 9\) is approximately \(-0.9729\).