exam Maths Puzzle Numerical Ability

complete the ordered pairs so that each is a solution for the given equation:

3x+4y=12 (0 ), (,3/4), (, 0), (8/3,)

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exam Other Question

Tutor could you please help me subtract and simplify this problem please.

x/x^2-3x+2 + 3/X^2+x-2

Thank you! Can you please help me figure this one out.

If I invested $10,000, part at 15% and part at 14%.
If the total interest at the end of the year is $1430, how much did I invest at 15%?

Thanks for your help