Goods X and Y are complements with a cross-elasticity of demand of – 0.8.
When the price of good X was $10, the quantity of good Y demanded was 2000 units per week. After a change in the price of good X, the demand for good Y increases to 2800 units per week.
What is the new price of good X?
$5.00
2 )
$6.80
3 )
$13.20
4 )
$15.00
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