!!!!! Identify the mapping diagram that represents the relationship and determine whether the relation is a function. {(–5, –4), (–1, 5), (–5, 3), (7, 8)}
well let's round. 90= 100, 75=80 that is how I face it. now 80 is 1/5 of 5/5= 100. so as a (%) we would sort it like:::: it is 80% out of +100 so he must have grown around 13%-16% due to him being 75kg in the past.