Amachine can fill a box with twenty pencils in 30 seconds. how many boxes can the machine fill in 2 hours? a) 2 boxes b) 120 boxes c) 240 boxes d) 2400 boxes

20 : 30

x : 7200

∴(20*7200)/30=4800

Step-by-step explanation:

20 pencils is to 30 seconds so x is to 7200(2 hours is seconds) then cross multiply and lastly divide 144000 by 30 to get the answer

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)