A store pays $697 for a snow board and marks the price up by 42%. What is the amount of the mark-up? please help

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.