Question

Three friends, Brody, Avery, and Khalil are saving different amounts of money each week. Brody started with $27 and added $20 every week. Avery's savings are represented by the table below, and Khalil's savings are represented by the graph below.
Avery's Savings
Weeks left parenthesis x right parenthesisWeeks (x) Total Savings left parenthesis y right parenthesisTotal Savings (y)
44 dollar sign, 56$56
88 dollar sign, 76$76
1212 dollar sign, 96$96
1616 dollar sign, 116$116
0
Weeks
Total Savings (Dollars)
x
y
0
Weeks
Total Savings (Dollars)
Khalil's Savings
(2,$69)
(4,$99)
Select the option which sorts the three friends in order from least to greatest dollar amount saved per week.

Answer 1

To compare the amounts saved by Brody, Avery, and Khalil per week, we need to analyze their savings:

1. **Brody**:
- Starting amount = $27
- Amount added per week = $20
- Therefore, Brody saves $20 per week.

2. **Avery**:
- From the table provided, we can calculate how much Avery saves each week by finding the difference in total savings week by week:
- From week 4 ($56) to week 8 ($76): $76 - $56 = $20
- From week 8 ($76) to week 12 ($96): $96 - $76 = $20
- From week 12 ($96) to week 16 ($116): $116 - $96 = $20
- Therefore, Avery also saves $20 per week.

3. **Khalil**:
- Given the points (2, $69) and (4, $99), we can find Khalil's savings per week by calculating the change in total savings divided by the change in weeks:
- Savings difference: $99 - $69 = $30
- Weeks difference: 4 - 2 = 2
- Therefore, Khalil saves $30 / 2 = $15 per week.

Now, to summarize the weekly savings:
- Brody: $20 per week
- Avery: $20 per week
- Khalil: $15 per week

**Sorting from least to greatest dollar amount saved per week**:
1. Khalil: $15
2. Brody: $20
3. Avery: $20

**Final order**: Khalil, Brody, Avery (Khalil < Brody = Avery).