Work out the area of a parallelogram with a base of 12cm and a height of 4cm?

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?

Determine domain and range, largest open interval, and intervals which function is continuous.

Solve the equation for x. 50(4x + 12) = 200