Answer:
Submarine W. the closest submarine is the one with the lowest depth, -1.5 km (which should actually be written as an absolute value, 1.5km, depth can't be negative).
You have to plug in 7 for f and 8 for k making it look like -5(7)-2+8-3(8), now multiply to get the further more, -35-2+8-24, now add or subtract to get -53
Hope this helps

+ 3x + 5
-

+ 6x + 5
-----------------------------------------
4x - 3 + 0
Answer:
255
Step-by-step explanation:
(1-15%)a=300
a=255