It is 74 because 10/10 equal 1 . 73+1=74
When you write a number in expanded form, you separate the digits based on their place value and turn it into an addition expression. The answer is 30+2+0.0+0.03, or if your teacher doesn't require the extra 0.0, just remove it.
Hope that helped.
Subtract 
from both sides to get
Answer:
y=25
2 of the y's = 50 in total
Step-by-step explanation:
180-115=x
x=65
180-90-65=y
y=25
