Solution

The cars I should look at are:

     +--------------------------------------+
| make price mpg rep78 |
|--------------------------------------|
3. | AMC Spirit 3,799 22 . |
14. | Chev. Chevette 3,299 29 3 |
18. | Chev. Monza 3,667 24 2 |
19. | Chev. Nova 3,955 19 3 |
20. | Dodge Colt 3,984 30 5 |
|--------------------------------------|
24. | Ford Fiesta 4,389 28 4 |
29. | Merc. Bobcat 3,829 22 4 |
34. | Merc. Zephyr 3,291 20 3 |
43. | Plym. Champ 4,425 34 5 |
57. | Datsun 210 4,589 35 5 |
|--------------------------------------|
62. | Honda Civic 4,499 28 4 |
63. | Mazda GLC 3,995 30 4 |
65. | Renault Le Car 3,895 26 3 |
66. | Subaru 3,798 35 5 |
68. | Toyota Corolla 3,748 31 5 |
+--------------------------------------+

I can generate this list with the following command:

l make price mpg rep78 if price<4000 | (price<5000 & rep78>3 & rep78<. & mpg>25)

Last Revised: 10/30/2009