Complete the following statements.
the sum of two rational numbers is
number because adding two rational numbers is equivalent to adding two
fractions, which is
under addition
the product of two rational numbers is
number because multiplying two rational numbers is equivalent to
multiplying two fractions which is
under multiplication,

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how