A review on combination

5x−4≥12 or 12x+5≤−4 can you with this problem

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

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.