exam Maths Puzzle Numerical Ability

Which of the ordered pairs
(7, 1), (10, 0), (1, -3), (-8, 6)
are solutions for the equation x + 3y = 10?

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exam Other Question

Find the perimeter of each polygon.

22. pentagon ABCDE with vertices A(-6,2), B(-4,7), C(0,4), D(0,0), E(-4,-3)

This problem is located in the Chapter 1 Practice Test on page 57. Thanks!
Please help me solve this:

Find the zeros of the following functions.

f(x) = 4x^3-4x^2-7x-2