12s - 29 < 50 - 3s - 25
Like terms
12s - 29 < 25 - 3s
+3s. +3s
S cancels
15s - 29 < 25
+ 29. +29
15s. < 54
/15. /15
S < 3.6
First, find the volume of the full tank
V= 16*8.5*10.5
V=1428 cubic inches
Then, just find 3/4 of the volume
V2= 1428 * (3/4)
V2= 1071 cubic inches
360 tiles because you have to multiply 12x30.
397.02 this is the exact answer hope this helped you
