What is the mode of the data set? 103, 77, 90, 102, 103, 81, 78, 84, 84, 87, 99, 103, 118

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

You’re giving a cube with a length of 2.5 cm and a width of 2.5 cm and a high of 2.5 cm you place it on a scale and it is 295 g calculate the density

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?