If your test marks in your last 3 tests were: 70%, 82%, and 90%, what's your average test mark?

Math it's appreciated. (picture provided)

Which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x+1|+1? shift 1 unit left and 1 unit down shift 1 unit left and 1 unit up shift 1 unit night and 1 unit down shift 1 unit nght and 1 unit up

For which rational expression is -2 an excluded value of x