The common factor is b since they both share it.
Hope this helps
2 because you make them with the same denominators that both go into each other EX: 8x9=72 7/8 now equals 63/72 and 4/9 now equals 28/72 now add them together 63/72 + 28/72= 91/72= 1 19/72
Answer:15/17
Step-by-step explanation: cos = adjacent/hypotenuse
(4,-8)
Step-by-step explanation:
from -5 to -1 you would have to count from 1 to 4. and do the same for -8 to -16
I believe the answer would be B. Catalysts lower the activation energy.
