State whether each equation is true or false for the value of the variable given.
| 1. |  |
y = 7 | 2. | 5x2 - 3(4) = 8 | x = 2 |
| 3. | n3 ÷ 4 ÷' n2 ÷ 2 ≤ 1/2 |
n = 4 | 4. |  |
y = 2 |
| 5. | n3 - n2 + n < 130 | n = 6 | 6. |  |
x = 0.3 |
Find the solution set for each inequality if the replacement stats are x = {31/2, 2, 3, 11/4} and y = {3, 5, 6, 8}.
| 7. | y + 6 <10 | 8. | x - 1 > 3 |
| 9. | 4x - 2 < 5 | 10. | 6y ≥ 36 |
| 11. | y/3 ≤ 2 | 12. | 2x - 1 ≤ 2 |
Solve each equation.
| 13. | s = 0.87 -0.33 | 14. | v = 2 1/4 ÷ 9 |
| 15. |  |
16. | w = 140 ÷[2(8-3)] |
| 17. | d = 103 - 54 | 18. |  |
| 19. |  |
20. |  |
| 21. |  |
22. |  |
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