exam Maths Puzzle Numerical Ability

simplify each expression
1. 15(x^4y^3)^4 divided by 21(x^5y)^2
2. 8^0
3. 12 divided by (2x)^0
4. 1 divided by 5^-3

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exam Other Question

How do you draw a figure with an area of 64 cm squared and a perimeter of 64 cm????? I have tried trial and error, but it does not seem to be working. Please help me. Thank you. Find the vertex, line of symmetry, the maximum/minimum value of f(x). Then, graph the function.

f(x) = -2(x+1)^2 + 8

Vertex is
Line of symmetry
Max/min value