The equipment is normal good.
A normal good, often known as a required good, refers to the degree of demand for the product in relation to wage growth or contraction rather than the quality of the good itself.
The link between income and demand for a typical good is elastic. To put it another way, changes in income and demand are connected positively or move in the same direction. The amount by which the quantity desired for a good changes in response to a change in the income is measured as income elasticity of demand.
Therefore, the answer is normal goods.
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