Answer:
7
Step-by-step explanation:
By Basic proportionality theorem:

Answer:
-0.48
Step-by-step explanation:
(-1.2)(0.4)
= - 0.48
Answer:
n = 21
Step-by-step explanation:
5(n-7)=2(n+14)
Distribute
5n -35 = 2n+28
Subtract 2n from each side
5n-2n -35 = 2n-2n +28
3n-35 =28
Add 35 to each side
3n-35+35 = 28+35
3n = 63
Divide by 3
3n/3 = 63/3
n =21
B should be the only correct answer.