exam Maths Puzzle Numerical Ability

How many lines must be drawn on a 3 foot square piece of cloth to mark off nine 1 foot squares?

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exam Other Question

Solve and check for X:

x x
--- - --- = 1
6 8
Thank you for your help :-) I really need help with these questions.

Evaluate each function for x= -2,0,and 5.

1.) y = 9 + x

2.) y = x^2 - 1

Please help me because I need to get this to my teacher tommorrow.