The answer is an Equilateral Triangle. I believe.
This cannot be simplyfied
For first one
Y=6x+21 can’t be changed
X=y/6-7/2
for the second
X=-12+3y
Y=4+x/3
Answer:
-42 ft
Step-by-step explanation:
I think your question missed the key information so allow me to attach the photo below which may be fit with your question.
Here is my answer:
At first he were at: -55ft
Then, he traveled up 13 feet
So his new depth = -55+13 = -42 ft
380, also I found the answer sheet to ur entire test