Jake earned $430 in interest on a $2500 investment after 18 months. what was the annual interest rate? (round to the nearest whole percent)

Which statements about these triangles is true

Triangle xyz has vertices x(1,3), y(0,0)

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price