Help please I don't get this problem​

Determine the equivalent system for the given system of equations: 5x − 3y = 6 x + y = 2

Acertain group of women has a 0.640.64% rate of red/green color blindness. if a woman is randomly selected, what is the probability that she does not have red/green color blindness? what is the probability that the woman selected does not have red/green color blindness? nothing (type an integer or a decimal. do not round.)

Can you explain how a table can be used to find a rate of change?