51, because 39+12=51. You just add both parts of the tree. Please Rate Brainliest.
Answer:
Step-by-step explanation:

Answer: -231 ft
<u>Step-by-step explanation:</u>
The submarine started at sea level = 0
It submerged 140 ft = -140 ft
It traveled 40 miles horizontally so it is still at -140 ft
It dove down an additional 120 ft = -260 ft <em>(-140 + -120)</em>
It traveled 25 miles horizontally so it is still at -260 ft
It rose 29 ft = -231 ft <em>(-260 + 29)</em>
Note: submerged and dove are negative values and rose is positive
0 - 140 - 120 + 29 = -231
Answer:
Multiplication
Step-by-step explanation:
Follow PEMDAS, so first you would sub in the 5 then work in the parentheses so you would multiply the 5
Answer:
3200 meters
Step-by-step explanation:
because it is