Got rich selling oil
a: thomas edison
invented the telephone
b: advertising
used the assembly line to make cars.
philanthropist
made a usable light bulb.
d: john d. rockefeller
was a steel factory owner
e: cornelius vanderbilt
is a rich person who gives back to society
f: monopoly
was successful in the railroad and shipping
industries
g: henry ford
h: andrew carnegie
was a wealthy banker.
9. a
alexander graham bell
is a business with no competition
j. p. morgan
informed people about products and services

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27

the romans were initially interested in expansion via sicily (which at that time was a cultural melting pot), part of which lay under carthaginian control. at the start of the first punic war (264-241 bc), carthage was the dominant power of the western mediterranean, with an extensive maritime empire

japan is located on a chain of islands called an archipelago. it is made up of four main islands and thousands of smaller ones. the terrain is mountainous, which means there is not a lot of good land for farming. because of the geography, the japanese relied on the sea for many aspects of daily life.

d is the answer hope this