Answer:
Substitution
Step-by-step explanation:
B, D, B, D
150 = x
We can use a ratio to solve
100 batches x batches
------------------- = ---------------------
8 hours 12 hours
Using cross products
100 * 12 = 8x
1200 = 8x
Divide by 8
1200/8 = 8x/8
A, C, and E good luck
