exam Maths Puzzle Numerical Ability

A man has twenty coins consisting of dimes and quarters. If the dimes were quarters and the quarters were dimes, he would have ninety cents more than he has now. How many dimes and quarters does he have?

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exam Other Question

At what points does the line 4x + 12 = 3y cross the x and y axes? 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.