$5,000 is invested at 3% interest. how much money must be invested at 5% interest so that the total interest from the two investments is $ 275 after one year

Which system of linear inequalities is graphed? can somebody pleasssse

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.