<PRE><B>Question 800409</B>
Add in the tree at the beginning later
For the first 4 trees that the landscaper plants,
There are 4 equal spaces, and the length of
the 4 spaces is {{{ 4*( 5 + 3/4 ) = 20 + 3 }}},
or 23 yards for 4 trees.
If I keep planting in groups of 4, there are
{{{ 115/23 = 5 }}} groups of 4, which makes
20 trees. Adding the tree at the beginning,
there are 21 trees planted along the walkway
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