the area of 4 walls with two windows and the door is 220m2 . if each window is m2 and door is 5m2 ,find the area of the walls excluding windows and doors

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?