The lowest temperature on mars can reach -140 degress celsuis while the highest temperature can be 20 degress celsuis. What is the difference between the highest and lowest temperature on Mars?

Can someone me with this problem . show your work .

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?

True or false? a circle could be circumscribed about the quadrilateral below.