exam Maths Puzzle Numerical Ability

x-6/x+2<-1 how do you solve and graph this inequality?

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exam Other Question

Can someone please help me understand this problem?
Given the constraints x + y(<=)90, 3x - y(>=)0, x(>=)0, y(>=)0, the minimum value for the function f(x) = 10x + 11y is
a. -90
b. 0
c. -3
d. 990
Thank you indicate which type of conic the following problem represents please help me
(x+1)^2/25 + (y-2)^2/25 = 1