The sum of three times a number and twice a second number is one. Half of the second number is five less than the first number.

What are the numbers?
3 and 4
3 and -4
-3 and -4
-3 and 4

Sorry guys but as you have a small brain

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?