exam Maths Puzzle Numerical Ability

graph the system

y is less than or equal to x+1
y is greater than or equal to 2x-1

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exam Other Question

My question is:

What is the slope of the following line? 2x - 3y = 18

Thanks!:) a canoeist paddled for 4 hrs with a 6km/h current to reach a campsite.the return trip against the same current took 10 hrs.find the speed of the canoe in still water.