please answer

When abdominoplasty costs were $6,000, Dr. Hurwitz treated 300 patients. When they dropp price to $5,000, customers increased to 500. What is the elasticity of demand for abdominoplasty using arc elasticity or the midpoints formu (rounded-off to 2 decimal places)? O - 2.12 O - 0.64 O - 0.36 O - 0.01 - 2.75 Question 7 Did the drop in price in the previous question increase revenue? O stayed exactly the same O No O none of the choices O cannot tell Yes