Answer:
triangle 1, triangle 3,
Step-by-step explanation:
Triangle 1= 
Triangle 2= is wrong
Triangle 3= 
Triangle 4= is wrong.
Answer:
She subtracted 7x instead of dividing it. Personally, i wouldn't have done that. I would subtract the 14 first, then divide.
Answer:
1.8
Step-by-step explanation:
8 increased by 20% is 9.6 i hope this helps :)
Answer:
Step-by-step explanation:
because interior angles are equal with parallel lines