The answer is a telegraph.
Especially known as the creator of the incandescent lamp, Thomas Edison was responsible for several devices important to the trajectory and development of mankind.
<u>One of the earliest inventions that made Thomas Edison famous, the phonograph was the first machine capable of recording and reproducing sounds.
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The telegraph breakthrough occurred while Edison was trying to improve the telegraph transmitter when he realized that the movement of the paper tape through the machine produced a noise that resembled spoken words when played at high speed.
In 1887, Congress established a commission to regulate the railroads by passing "The Interstate Commerce Act", which was mainly intended to keep railroad companies from becoming monopolies.
Answer:John died
Explanation:Alr that’s it
In a unitary government the central government holds all the power. In a federal government the power is divided between the central government and lower levels of government (provinces or states). In a confederate government most of the power rests in the states.'
Hope this helps :)
Answer:
0.7
Explanation:
Given the following :
Current sales price per unit = $150
Variable cost per unit = 30% of sales price
30% of sales price
0.3 × $150 = $45
Contribution margin ratio :
Contribution margin ratio = (sales price per unit - variable cost per unit) / sales price per unit
Contribution margin ratio:
$(150 - 45) / $150
$105 / $150 = 0.7
= 70%
