exam Maths Puzzle Numerical Ability

Taya and Jed collect coins. The ratio of the number of coins in their collections, in some order, is 4 to 3. If Taya has 60 coins in her collection, how many coins could Jed have?

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exam Other Question

100s2-9=0

Im really confused and I have to solve this by factoring.
FIND A THIRD-DEGREE POLYNOMIAL EQUATION WITH RATIONAL COEFFICIENTS THAT HAS ROOTS -5 AND 6+i