Y=25x is proportional. Unit rate is 25
The other 2 aren't because they have a y-intercept and don't cross the orgin
Answer:
25 percent off. I think, tell me if i am wrong.
Answer:
B=d-3a/3
Step-by-step explanation:
d=3a+3b
d-3a=3b
d-3a/3=b
B=d-3a/3
Answer: 
Step-by-step explanation:

multiply the numberator and denominator:
3*-1 = -3
and
4*4 = 16 so,
is the answer
Answer:
D
Step-by-step explanation:
3.19 become 3.20 . 1.69 becomes 1.70. Then 3.20 plus 1.70 is 4.90 or 4.9.