exam Maths Puzzle Numerical Ability

I do not know real number at all please help!Thank you.

Multiply (-1.6)(4)(-10).

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exam Other Question

question: solve each of the following systems by graphing

3x-6y=9

x-2y=3 Please help me with this logic problem. It is to construct a truth table. The problem reads (p ^ q) execlusive or r. I have a table that shows the answer as T,F,F,T,F,F,T,T,F