Answer:
8
Step-by-step explanation:
Set up a ratio problem:
25 hours/2 tests = 100 hours/x
25x = 200
x = 8
3x - 18 = 42
3x = 42 + 18
3x = 60
x = 60/3
x = 20
(3) 62.5% cuz u take the total number of the students and u divide it by the number of students between 60 to 65
Answer:
angle 3 = angle 6
angle 1 = angle 5
angle 2 + angle 5 + angle 6 = 180°
