book Maths Puzzle Numerical Ability

My question says to solve each system of inequalities by graphing. I'm not sure how to do this...So could you please help me?
x<-4
y>3 (the sign in the middle says greater than

Read Solution (Total 0)

book Other Question

hi. i need to know how to factor this equation:

12x^3-23x^2-3x+2

i know that the answer is:

(x-2)(3x+1)(4x-1),

but i don't know how to get this result. please give me How much does a fish weigh if its tail weighs 4 kilograms (kg), its head weighs as much as its tail and half its body, and its body weighs as much as its head and tail together?