If you do not have have 8/4 cups and only have 6/3 how many more cups will you need

Taking algebra two apex courses and need with these questions

Can some one explain this i got sent this. is this a threat i’m scared

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?