exam Maths Puzzle Numerical Ability

What is the last operation that takes place in evaluating -1^6?
a. Parentheses
b. Addition
c. Subtraction
d. Exponents

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exam Other Question

I am suppose to simplify and be sure I execute all multiplication and division.

3{2[4(x^2+2)-2(x^2-5)]}

This is what I got 12x^2+108 Is this right?
Thanks, Lackinmath

what is the equation of the line that contains the points with(x,y)coordinates(-3,7)and(5,-1)