Plz gyz ineed the calculation

a man spends 1/5on his yearly income on rent and taxes 1/2 on household expenses and 1/10 on other expanses. he saves the remainder. what fractions of his income does he save

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.