Answer:
Hamm i think si r or q mm sorry if it's wrong
Answer: 12+8.2n
Step-by-step explanation: Your basically adding 12 to 8.2 times n.
Answer:
6 square root 2
Step-by-step explanation:
its the only thing i can think of it to be
Step-by-step explanation:
it's been a while but I think it's 84°
Answer:

Step-by-step explanation:
The 10 represents the speed traveling downsteam while the 3 represents speed upstream. Downstream you have the help of the current, so it would be x + 2, upstream you are working against the current so it would be x - 2.