Are decomposers the primary source of energy in an ecosystem?

Find the commission on a $590.00 sale if the commission is 15%.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )