Final answer:
The dance team needs to raise an additional $700. Dividing this amount by the 35 team members, each member needs to raise $20 on average to meet the goal.
Step-by-step explanation:
The 35 members of the dance team are aiming to meet a goal of raising at least $1200 to cover travel costs to a training camp. They have already raised $500, so they need to raise an additional $700 ($1200 - $500 = $700). To find out how much each team member should still raise, on average, you divide the remaining amount by the number of team members. Therefore, each team member needs to raise an additional $700 / 35, which equals $20 per member.