saizo, answer all the questions correctly please

In the field of microeconomics, if a function P(2) describes the profit a company will enjoy, then P'(r) is called the "marginal" profit. Andrea owns the company "Beets by 'Drea," that sells high quality vegetables. Below is a graph of the marginal profit P'(x) function for her business, where the z axis is the number of acres Andrea plants during the year. An acre is a unit of area for a large amount of land. acre 2.5 2 tens of thousands dollars 1.5 0.5 260 270 280 290 300 30 320 330 -0.5 -1 -1.5 -2 acres 310 1. [Fundamentals] According to the graph above, P'(x)do = -1. What are the units of this -1? 2. [Fundamentals] When Andrea plants 300 acres, her profit is $700,000; that is, P(300) = 700, 000. Use the fact 310 that / P'(x)dr = -1 to make a prediction about the value of P(310). /300 3. [Achievement] Translate the following sentence into two calculus expressions involving integral. There is no difference in profit if she plants 320 acres instead of 300 acres, but there will be a a net positive change in profit if she plants 330 acres instead of 300 acres. 1. [Achievement] Andrea knows she is going to plant at least 260 acres of beets this year. However, she is not sure if she should plant more than that. Use integrals to explain why the best business decision that she could make is to plant 340 acres instead of 260 acres, and the worst decision she could make would be to plant 300 acres instead of 260 acres. You do not need to give explicit values for these integrals, but rather explain how you are using them to evaluate these business decisions