What number does this roman numeral represent?

cccxxx

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

Write 17/20 as a decimal and as a percent.