Me with this question i will give brainliest to the correct answer

A)   y= (-1/2)x+50

 (y=(-1/2)4 +50 = -2+50= 48)

Y=( -1/2 )8-50=-4+50 =46

B)    -1/2X+50>=40

         -1/2X>= -10

           X<=20

To start the meeting with 40 students it should be 20 minutes or less before the meeting

 Draw the line with the zero in the middle

Draw a closed circle at +20 and from that point draw a line to the left

no one knows lol

step-by-step explanation: