Answer:
a
Step-by-step explanation:
3/15 simplifies to 1/5
Df = g - 10
To solve for d, divide both sides by f.
df / f = (g - 10) / f
d = (g - 10) / f
I hope this explains it.
You need to explain to us what to do or else nobody will understand what your trying to ask for.
Mark brainliest please mark