Answer:
false because it could be 6
Step-by-step explanation:
The Scientific notation for above value is :

Let's replace every copy of x with 7 and simplify.

Which is clearly false. This is probably the set of steps you followed to get "no solution".
Why is there no solution? Well let's subtract 9 from both sides to isolate the square root

Recall that the result of a square root operation is never negative. The range of
and
is the set of nonnegative numbers. There is no way we can have the left hand side result in -6
If there was a negative sign out front the square root and we have this instead

then the answer would be x = 7
Unfortunately, there isn't such a negative sign, so we stick with "no solutions".
You type "they both ... " This indicates that there are TWO people involved, not just one.
"<span>plus 20% per month plus 15% commission" isn't quite clear. Is that 20% of the base pay ($1,250)? I assume that the 15% commission is figured on the sales ($20,000)
Please clarify this as much as you can.</span>
Answer:
THE ANSWER IS 15
Step-by-step explanation:
A:B=2:5
6:B=2:5
2B=6*5
2B=30
B=30/2
B=15