Can someone tell me this pls

How do i solve uniform motion problems?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.