Select the three ratios that represent the number of blue marbles to red marbles

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

In a column proof the right column states your reasons

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth