exam Maths Puzzle Numerical Ability

Mary has $3.00 in nickels, dimes, and quarters. If she has twice as many dimes as quarters and five more nickels than dimes, how many coins of each type does she have?

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exam Other Question

Find The Sum or Difference.

22. -3 1/4 +(-2 2/5)

Any help with this equation would be GREATLY</b> appreciated.
For each of the relationships below, explain whether you think it is best described by a linear function or a non linear function. explain your reasoning thoroughly.

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