Find y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10 a. y=1/2.y•12; 15/4 b. y=1/2. y•15; 12/4 c. y=1/16. y•15; 15/4 d. y=1/16. y•2•15; 12/4

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?