Answer: Distance between dolphin and helicopter = 93.5 feet
Explanation:
Distance at which dolphin swimming below the ocean= (-) 18 feet
(it is represented as the negative number as it denotes the distance below the ocean)
Distance at which helicopter is above the ocean = (+) 75.5 feet
(it is represented as the positive number as it denotes the distance above the ocean)
Distance between dolphin and helicopter = 75.5 - (-18) feet
= 75.5 + 18 feet
= 93.5 feet
Answer:

Step-by-step explanation:
First you have to find out the 3% of 900 (is 27)
then you add 27 to 900
then you multiply it by 3 years (36 months)
and your result is 33372 :)
Answer:
3x^3 + 3x^2 - 27x - 27
Step-by-step explanation: