Hello!
Answer:

Explanation:
→ We want to write an expression that represents Jamie’s total cost in terms of h
→ Let h be the number of hours.
→ We know that:
- She will have to pay $35 for ballet shoes:

- She will have to pay an additional $20 per hour, h, for lessons:

→ The Jamie’s total cost is equal to:
ballet shoes + number of hours for lessons
→ So the Jamie’s total cost is equal to:

Conclusion:
The Jamie’s total cost is equal to $35 + 20h.