Addison worked 6 more hours this week than last week. In total, she worked 72 hours this week and last week. Using the equation 2h + 6 = 72, how many hours (h) did Addison work last week?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Which of the following circles have their centers in the third quadrant?

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