0.424 rounded to nearest tenth would be 0.4 as you can not round up because the hundredth place is not 5 or higher
36 + x would be your answer. When something is 'increased', you are adding to it. Such as saying 47 increased by -5x is the same as 47 + (-5x).
If this wasn't the answer you were looking for, let me know. For now, I hope this helped:)
20° is the answer if you look on the other side