Answer:
1 hour
Step-by-step explanation:
Each graph shown lasts for 1/2 hour / 30 minutes
Answer:image
Step-by-step explanation:The photo is the answer
A = 40° (Vertically opposite angles)
b = 180 - 90 - 40 = 50° (Angles in a triangle add up to 180)
c = 180 - 65 = 115° (Adjacent angles on a straight line)
36 / 10 = 3.6 as a decimal ;