Select all of the solutions for the linear inequality graphed in the picture

(0, 0)
(4, -1)
(-1, 4)
(0, -2)
(-2, 0)
(-4, 0)

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Which is the focus of a parabola with equation y2=4x