book Maths Puzzle Numerical Ability

Determine wether -5 satisfies the compound inequality.

3x > -15 and -2x < 11

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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? hellow i dont realy lick doin algebra because it is to hard i tryed finding some help but i couldnt i looked on different sites but they said you have to download but my parents wo