A plumber visits your home to fix a leak. He charges a flat rate of $35 and $12 per hour. If the total bill was $83, how many hours did he work?

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?

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

If a line is defined by the equation y = 5x + 2, what is the slope?