Answer:
the difference in elevation is 18.5 m
the elevation of submarine is -7.75m
so elevation of helicopter is = - 7.75 + 18.5
=10.75m
thus elevation of helicopter is 10.75 m
Step-by-step explanation:
heh
14
7/8of 160=140
140×10=1400
1400÷100=14
0.01
-14
(-6)(2)= -12
(-8÷4)= -2
-12+(-2)= -14