what will come in the following series 20 25 23 28 26 31 29 34 _? answer is 31. please explain how?? urgent pls​

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units