Answer:
-19
Step-by-step explanation:
-4(3)+(-7)
-12 + (-7)
-12 - 7
= -19
solution is: plus -2
x = 2
f(x) = x + 8
f(x) = 10
10 = x + 8
minus 8 from the both sides
10 - 8 = x
2 = x
a=4220-2t
This would be if we are finding the altitude of the submarine from the surface of the water(how many meters away from the surface it is). I don't know what it would be if you want to know from the bottom of the ocean.
