Answer:
x = 50
Step-by-step explanation:
Step-by-step explanation:
Given

Hope it will help :)
Answer:
A. -415m
Step-by-step explanation:
-300 meters is the starting point.
Then, the submarine goes 115m further below the surface, which can be represented as -115.
Add -300 and -115 and you get -415m.
Answer:
Step-by-step explanation:
5= 31(x +7)
5= 31x + 217
5 - 217 = 31x + 217 - 217
212 = 31x
212/31 = 31x/31
212 = x
x= 212