Abean plant grows at a constant rate for a month. after 10 days, the plant is 35 centimeters tall. after 20 days, the plant is 55 centimeters tall.
which equation models the height of the plant, y, after x days

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.