Answer:
A

and
D

Step-by-step explanation:
Because if you simplify the equation theb you get 8x+4 therefore D is equivalent to it. A is also equal to D which make it equivalent to the equation as well.
2.5/0.2=12.5
2.5 times 12.5=31.25
The actual height of the building is 31.25 cm
Answer:
The segment bisector is MN
Step-by-step explanation:
MN divides XY into two equal lengths
Answer:
18
Step-by-step explanation:
If forty percent of the class is boys, then sixty percent of the class is girls. So that means you must multiply .6 by 30 which will give you your answer of 18. .6 is a decimal form of 60%