The answer is in the image
The solution is given in the image below
Here,
tip=18%of $32
tip=(18/100)*32
=0.18*32
=$5.76
Total payment=32+5.76=$37.76
Speed=Distance/time
distance=15m
time=1sec
speed=15/1=15m/sec
Distance=Speed*time
time=15min=15*60sec=900sec
Distance travelled in 15 min=15*900=13,500m
=13500/1000 km=13.5Km
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.
tip=18% of 75.45
=18/100 * 75.45 = $13.581
Tip = $13.581
Given height of gymnasium is 5/6 height of 30 foot ball
therefore height of gymnasium=5/6 * 30
=25 feet
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