1.
Math is the most important subject in the
school, but we can deny that we also need the basic of math for our daily
life. Such as finances, so we would be able to avoid some financial loss. We
even need math in our kitchen to avoid terrible tasting for our cook.
2.
Once
the electric street car was very popular in the USA after 1880 and the next
20-30. Because it was not populating very efficient able carrying large number
of passenger with less cost, it even profitable for the company. But in the next century some business start
get rid of it in the street and replace with buses and cars.