180 minus what = 45

i really need this answer thank you

Asquare parking lot has 6,400 square meters what is the length in meters

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?

Simplify using positive exponents only.