exam Maths Puzzle Numerical Ability

What is the minimun and maximum. the vertex, axis of symmetry, and how to graph it.

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exam Other Question

The length of a rectangle is 7 in. more than twice its width. If the perimeter of the rectangle is 32 in., find the width of the rectangle.
My choices are
2 in.
3 in.
4 in.
5 in.
in how many ways can 5 boys and 3 girls be arranged so that no two girls may sit together?
please help me out?i need this answer today.please please.................