help please

1. [-/6 Points] DETAILS LARCALCET7 4.7.508.XP.MI. MY NOTES ASK YOUR TEACHER The profit P (in thousands of dollars) for a company spending an amount s (in thousands of dollars) on advertising is shown below. P = - 153 + 952 + 400 10 (a) Find the amount of money the company should spend on advertising in order to yield a maximum profit. thousands of dollars (b) The point of diminishing returns is the point at which the rate of growth of the profit function begins to decline. Find the point of diminishing returns. S = thousands of dollars Show My Work (Required) ? What steps or reasoning did you use? Your work counts towards your score. You can submit show my work an unlimited number of times. Uploaded File (10 file maximum) No Files to Display Upload File Show My Work has not been graded yet. Uploaded File (10 file maximum) No Files to Display