Help me with 2 MATH QUESTION PRE CALCULUS CLASS:

1)

Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying3%, one paying5.5% and one paying 7% simple interest per year.Cyndee wants to put twice as much in the lowest-yielding, least-risky account as in the highest-yielding account. How much should she invest in each account to achieve a total annual return of $2295?

least-risky:

intermediate:

highest-yielding:

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2)

Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying4%, one paying6.5% and one paying 8% simple interest per year.Cyndee wants to put twice as much in the lowest-yielding, least-risky account as in the highest-yielding account. How much should she invest in each account to achieve a total annual return of $2760?

least-risky:

intermediate:

highest-yielding: