G(x)=-2x2 + 3x - 9
help give brilinest if right sorry spelled wrong but you know what i mean.

What is the answer to |-2x-5|-|-4+8| and x=7

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

Whats is the value of the variables ?