Jenny has $10. She earns $7, spends $18, earns $4, then spends $8. How many dollars does she have or owe? *

1. Break Down the Problem

We will calculate Jenny's balance step by step:

• Initial amount: $10
• Earnings: +$7, +$4
• Spendings: -$18, -$8

2. Relevant Concepts

To find Jenny's final balance, we will sum her earnings and then subtract her spendings.

3. Analysis and Detail

1. Start with the initial amount: $\text{Initial amount} = 10$

2. Add her first earnings: $\text{After earning \$7} = 10 + 7 = 17$

3. Subtract her first spending: $\text{After spending \$18} = 17 - 18 = -1$

4. Add her second earnings: $\text{After earning \$4} = -1 + 4 = 3$

5. Subtract her second spending: $\text{After spending \$8} = 3 - 8 = -5$

4. Verify and Summarize

After calculating all earnings and spendings, we find that Jenny ends up with -$5, meaning she owes$5.

Final Answer

Jenny owes $5.