The revenue (in dollars) from the sale of x car seats for infants is given by the following function. upper r (x )equals 64 x minus 0.020 x squared 0 less than or equals x less than or equals 3200 (a) find the average change in revenue if production is changed from 1,000 car seats to 1,050 car seats. (b) use the four-step process to find upper r prime (x ). (c) find the revenue and the instantaneous rate of change of revenue at a production level of 1,000 car seats, and interpret the results.

An increase in the market price of men's haircuts, from $16 per haircut to $26 per haircut, initially causes a local barbershop to have its employees work overtime to increase the number of daily haircuts provided from 20 to 25. when the $26 market price remains unchanged for several weeks and all other things remain equal as well, the barbershop hires additional employees and provides 40 haircuts per day. what is the short-run price elasticity of supply? nothing (your answer should have two decimal places.) what is the long-run price elasticity of supply? nothing (your answer should have two decimal places.)