exam Maths Puzzle Numerical Ability

x2-4xy+4y2
___________
3xy-6y2

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exam Other Question

Trisha is on vacation. She sends letters and postcards to her friends at home. she needs 33 cents in postage for each letter and 20 cents for each postcard. she spends $3.58 in postage. how many letters and postcards did she send? solve u-b/m=x for u