The answer is d. Is it right?
There is no way to simplify this if that is what u are looking for xD
Answer:

Step-by-step explanation:

The answer would be -35. I think so because you multiply -5 by 7. You also multiply 7x by 7 too right?
Answer:
no real numbers will make this equation true
Step-by-step explanation:
if you square both sides, you'll get sqrt(-49). this will get you an imaginary number (7i) which is not a real number.