The number of employees in a company decreased from 40 to 28. What is the percentage decrease in the number of employees?.

The volume of a cylinder is 72 tt cm3. if the radius is 3 cm, what is the height of the cylinder?

The graph shows the populations of two species over time. which type of symbiotic relationship does the graph represent? a. commensal b. mutualistic c. parasitic d. parent-offspring e. predator-prey

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers