5added to y as 5 + y and 5 subtracted from y as 5-y why is the first expression correct but the second one is incorrect

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

Do,h = (7, 9) (14, 18) the scale factor is

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with