And explain how too simplify a radical equation

Prove that quadrilateral is a rhombus.

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab