Answer:
Al bought a sound system that lost a total of $650.00,
and he also bought some CD’s at $9.99 each. The total
that Al spent was $719.93. How many CD’s did Al buy?
[Ignore sales tax.]
1. 650.00 + 9.99n = 719.93
2. 650.00 − 9.99n = 719.93
3. 650.00 × 9.99n = 719.93
4. 650.00 ÷ 9.99n = 719.93
6. 1
In which graph do the plotted points lie on the line y = x