Answer:
18
Step-by-step explanation:
15 x 2 = 30
30 - 12 = 18
18 girls are in his class
Answer:
Step-by-step explanation:
x = 52° + 90° ( exterior angle of a triangle is equal to the sum of two opposite interior angles )
x = 142°
Answer:
Step-by-step explanation:
maybe 8 or 1/9
Answer:
The answer is -1
Step-by-step explanation:
hope it helps