Answer:
8.08
Step-by-step explanation:
Hi!
The income elasticity of demand is calculated by dividing the negative % change in demand by the % change in real income.
We calculate the negative % change in demand as:
19/20 = 0.95, a 95%
Then, the % change in real income as:
(34,000-30,000)/34,000 = 0.1176, an 11.76%
So the income elasticity of demand is:
0.95/0.1176 = 8.08
Hope it helps! :)