why do you think babies in the modern age have a better chance of survivial than babies in the 18th century

I believe that babies in this modern age have a much better chance of survival than babies in the 18th century due to advances in technology and medical research.

In the 18th century, there were no vaccines for diseases and viral infections and the mortality child rate then was much higher than now. However, such is not the case now as much of those risks have either been eliminated totally or reduced to the barest minimum.

Even prematurely born babies have incubators and other medical devices which help them to survive.

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: