Answer:
31000 dollars were invested at 4% interest rate.
16000 dollars were invested at 5% interest rate.
Step-by-step explanation:
Convert the interest rate into decimal and then write down two equations to solve for the unknowns.


Best Regards!
Answer:
D
Step-by-step explanation:
A,B,and C can not solve. because they have wrong answers.
I believe it would be the first choice
Hope that helps!
Answer:
might be wrong..but i think its all real numbers
2.57 is the anwser. it comes out to be 2.56666667 which woukd round up to 2.57