Answer with Step-by-step explanation:
We are given that
P(A)=0.4 and P(B)=0.7
We know that
We know that
Maximum value of 
=1 and minimum value of =0
It is not possible that 
is equal to 1.1
Multiply by (-1) on both sides
Again, 
Multiply by (-1) on both sides
Hence, 
Answer:
15 or 14
Step-by-step explanation:
I hope you meant Parking B as in Basement bcoz that's what i got
If you are in the US you should probably choose 14 since ground floor is not considered a floor.
For 15, I added plus ground floor.
A. because is $6 for every month as said in 6x, then an additional 12 for signing up, making 6x + 12 and she wants it to be under $60 so you use the less than sign making 6x+12 <60
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
