Can someone help me with these problems step by step? It’s pre-algebra so it’s not rlly that hard.

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?