The answer is in the image
The total nom of code that can be used is equal to 5+3 = 8
Salesperson will make 6% of 1800
=(6/100)*1800
=108
Salesperson will make $108 in $1800 sales
The wood before starting =12 feet
Left wood=6 feet
Wood used till now=12-6=6 feet
Picture frame built till now= 6/(3/4)
=8 pieces
Therefore, till now 8 pieces have been made.
Given height of gymnasium is 5/6 height of 30 foot ball
therefore height of gymnasium=5/6 * 30
=25 feet
It will provide an instant answer!