Find the derivative of the function. f(x) = (8x − 5)−1 f '(x)

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?

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?