The income elasticity for the household is -1.05.
<h3>What is the income elasticity?</h3>
Income elasticity measures how quantity demanded changes when there is a change in the income of a person / household
Income elasticity = percentage change in quantity demanded / percentage change in income
- percentage change in income = (3000 / 2500) - 1 = 0.2 = 20%
- percentage change in quantity demanded =( 150 /190) - 1 = -0.21 = -21%
Income elasticity = -21% / 20 = -1.05
To learn more about income elasticity, please check: brainly.com/question/15313354
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No solution because 12x + 8 does not equal 12x + 12

Let's evaluate ~

plug in the values :




Therefore, B is the Correct choice ~
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"Combinations" isn't really the right word, because a combination doesn't take order of elements into account, and the outcome of a race certainly does depend on order. "Permutations" would be the correct term.
If 4 students are competing, then the race has
4! = 4 • 3 • 2 • 1 = 24
possible outcomes.
I believe it's the same as adding 8+3, but you add the negative sign to your answer
so 8+3 = (-?)