exam Maths Puzzle Numerical Ability

Can someone help me with this problem?

I need to evaluate:
|4| + | -3|

Thanks,
Sher

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exam Other Question

x=1 y=3
x=2 y=9
x=3 y=27
x=4 y=81

find a formula relating x and y With a given tail wind, an airplane can travel 1080 mph in six hours. But flying in the opposite direction with the same wind blowing, the plane can fly only one-third of that dist