There are 26 people in a business meeting. at some point or another during the meeting, each person shakes hands once with everyone else. how many total handshakes will there be?

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

Find the values of the variables in the kite

Find the distance between c and d on the number line c=3 and d=11