Question

use the order of operations to evaluate.

$3^3 - (1.1 + 6.4) + 4.5$
$3^3 - \quad 7.5 \quad + 4.5$ \qquad add.
$27 - \quad 7.5 \quad + 4.5$ \qquad evaluate the power.
$\quad \quad \quad 19.5 \quad + 4.5$ \qquad subtract.
\boxed{} \qquad \qquad \quad add.

Explanation:

Step1: Add inside parentheses

$1.1 + 6.4 = 7.5$

Step2: Evaluate the exponent

$3^3 = 27$

Step3: Perform leftmost subtraction

$27 - 7.5 = 19.5$

Step4: Perform final addition

$19.5 + 4.5 = 24$

Answer:

24