Afixed amount used as a standard of measurement is called a

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Write the equations in logarithmic form 9^4=6,561