Tara and Tom went to buy their mom a birthday gift. Tara bought a scarf for $21.50. Tom bought a cook book that cost him $15.99. At the end of their trip they had $4.76 left. How much money did they come to the mall with?

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