The demand for a car wash is
x = 800 - 20p,
where the current price is $5. Find the price elasticity of demand \eta for this price.
\eta =
Can revenue be increased by lowering the price and thus attracting more customers?
Yes, because the demand is elastic.
Yes, because the demand is inelastic.
No, because the demand is elastic.
No, because the demand is inelastic.