Jacob's consumption increased by <u>$12,000</u>.
<h3>What is the marginal propensity to consume?</h3>
The marginal propensity to consume is defined as the proportion of an increase in income that a consumer consumes instead of saving.
<h3>Data and Calculations:</h3>
Amount of disposal income in 2019 = $30,000
Amount of consumption in 2019 = $20,000
Increased disposal income = $40,000
Marginal propensity to consume = 0.8
Increase in consumption = $12,000 ($40,000 x 0.8 - $20,000)
Thus, Jacob's consumption increased by <u>$12,000</u>.
Learn more about marginal propensity to consume at brainly.com/question/17930875
To respect the rights of citizens
Answer: Muhammad was born around the year 570 CE to the Banu Hashim clan of the Quraysh tribe, one of Mecca's prominent families. ... At the age of six, Muhammad lost his biological mother, Amina, to illness and was raised by his paternal grandfather, Abd al-Muttalib, until he died when Muhammad was eight. His father died before he was born and he was raised first by his grandfather and then his uncle. He belonged to a poor but respectable family of the Quraysh tribe. The family was active in Meccan politics and trade.
Explanation: