Joanne is building a 1: 200 scale model of the Great Pyramid of Giza for a Social Studies Project. Her model has a square base that is approximately 3.8 feet on each side. What is the (approximate) area of the base of the actual Great Pyramid of Giza in square feet?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y

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?