Your search for a researcher has determined that an equation that models the height of a particular species of tree is y=20.2log(x), where y is height in metres and x is time in years. Predict the height of the tree after 30years and predict how old the tree will be when it is 15m tall?

Answer 1

what's the trouble?
y(30) = 20.2 log(30)

when y=15,
20.2 log(x) = 15
and just solve for x