I need help with a question on angles. I need to find the value of x without knowing the angles degrees. The angles are adjacent. The first angle is 7x, the second angle is (x + 20).

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.

If a and b are real numbers, then |a-b| is always, sometimes or never equal to |b-a| ?