(4/5 k + 1) - (3/5 K-2) do yk the answer to this ?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction