Is 3x*-1, -4x or -3x?

* = times by

Thank

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

For what values of x is x2 + 2x = 24 true?

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?