In what ways are adding and subtracting important to use in life? PLEASE ANSWER ASAP

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section