W=(-2/7)xx=(-9/4),y=3/4 ,and z=(-9/2) evaluate wx-yz
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Answer:
If there are 2 quarters for every 3 nickels,
then there are quarters.
If there are 2 dimes for every quarter,
then there are dimes.
If the number of pennies and nickels together are equal to the number of dimes, then there are pennies.