pleae solve all the question to get a thumbs up. thanks.

Q1. (Total 25 points) Joanna is currently working a total of 7 hours per day to produce 280 dolls. She thinks that by changing the paint used for the facial features and fingernails, she can increase the rate to 360 dolls per day. Total material cost for each doll is approximately $3.50; she has to spend $40 in the necessary supplies (expendables) per day; energy costs are assumed to be only $4.00 per day; and the labor rate for her is $10 per hour. a) Viewing this from a total (multifactor) productivity perspective, what is her productivity at present and what is her productivity with the new paint in terms of dolls per dollar? (15 points) b) If she uses the new paint, by what amount could Joanna's material costs per doll increase without reducing total (multifactor) productivity? (10 points)