Expand and simplify (x - 2)(x - 1)

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

What is r i 4.5+10r=-6.5 with work pls