Imagine the function weight that computes the weight of a fern in pounds. Leaves weigh 0.5 pounds per unit area. For a branch, if the length is [exam1-Z-G-2.gif] and the thickness is [exam1-Z-G-3.gif], the weight (in pounds) is

[exam1-Z-G-4.gif]

Compute the weights of your example ferns (leaving the answer as a formula in terms of [exam1-Z-G-5.gif] is fine -- that's what the little man is for, after all).

Solution

5
1000[exam1-Z-G-6.gif]
1000[exam1-Z-G-7.gif]+5