exam Maths Puzzle Numerical Ability

How many solutions are there to the system
x - 4y = 2
x-4y = 7

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exam Other Question

Find the area of the rectangle shown in the figure. Please help me with this I cant seem to remember how to get the area.
Side 1 sqrt3+sqrt3
Side 2 sqrt3+sqrt3 Using a calculator, find log 1000 where log means to the base of 10. How do I solve this?