$\"\"$

Order of operations:

Step 1: Evaluate the expression inside the grouping symbols.

Step 2: Evaluate the powers.

Step 3: Multiply and/or divide from left to right.

Step 4: Add and/or subtract from left to right.

$\"\"$

Consider area of the trapezoid is $\"\"$ .

According to the order of operations:

Step 1: Add the length of the bases $\"\"$ and $\"\"$ under the parentheses.

Step 2: Multiply by the height $\"\"$ by $\"\"$ .

Step 3: Multiply $\"\"$ with the sum of bases.

$\"\"$

Add the length of the bases $\"\"$ and $\"\"$ under the parentheses.

Multiply by the height $\"\"$ by $\"\"$ .

Multiply $\"\"$ with the sum of bases.