Answer:
i dont know ????
Step-by-step explanation:
Answer:
I cant do them all for you, but essentially every equation there is an a, plug in 10 for a. Every equation with b, plug in 9 and every equation with c plug in 4. Then Solve/simplify
Step-by-step explanation:
S= 15
3s=45
3s/3=45/3
S=15
You have to divide both sides