Complete Question
The complete question is on the first uploaded image
Answer:
The answers and the explanation are on the second ,third and fourth uploaded image
Step-by-step explanation:
If x is how long your friend swims and y is how long you swim, the answer would be x + 15 = y
Answer:

Step-by-step explanation:

Answer:
-8a^2 + 9a
or
9a - 8a^2
the answer is c
Step-by-step explanation:
Answer:
X= 6.2 + 68 ???
Step-by-step explanation:
I'm not sure that's what I would write in an exam