Jamila and Marcus are delivering newspapers. If Jamila delivers 20 papers in one hour and Marcus delivers 200 papers in four hours, how long will it take both of them working together to deliver 2000 newspapers? (Critically thinking)

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

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

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.