exam Maths Puzzle Numerical Ability

23a -9 < -23

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exam Other Question

Describe and correct the input error in the following table. The output is correct:

input,x: 1, 3, 1, -3
output,y: -1, 4, 1, 5
a ramp in a multistory car park is 62 feet long and rises 11 feet. estimate the angle that the ramp makes with the horizontal.
please help me figure this out.
i dont know how.
thanks a lot!