Answer:
See below.
Step-by-step explanation:
There are 2 options in finding the difference between f and 35, as you did not state in the question which if the 2 is the larger number.
(f-35)-5=f-35-5
=f-40
OR
(35-f)-5=35-f-5
=30-f
43 inches deeper and it will be 6 feet deep
87.0
17.4
17x5=85
.4x5=2.0
85+2.0=87.0