Beth sold half of her comic books and then bought nine more. She now has 28. With how many did she begin?

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?