\( 30 \div 3 \div 10 \times 2+6 \) of \( 4 \div 6+30 \)

5. \( (17-12)= \)

11. You begin a hike in Death Valley, California, at an elevation of -86 meter You hike to a point of elevation at 45 meters. What is your change in elevation?

To be adopted, a resolution must be approved by at least \( 2 / 3 \) of the members of the assembly. There are 435 members in the assembly. Find the number of members who must approve the resolution for it to be adopted.

3. \( -10-9 \)

Use the model to find \( 530 \div 5 \). First, find the missing side lengths. Then, find the quotient. \( 530 \div 5=\square \)