exam Maths Puzzle Numerical Ability

2x-13<_95

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exam Other Question

How many integers in the set of all integers from 1 to 100, unclusive, are not the square of an integer?

(A) 19
(B) 50
(C) 81
(D) 89
(E) 90 this is on page 433
y-x=4
y=3x+2