Answer:
4 tiles are added to each figure in the tile pattern.
By "density" I assume you mean "probability density function". For this to be the case for

, we require

Since

you have

which means
Step-by-step explanation:
x = by - 3/2
x + 3/2 = by
y = x/b + 3/(2b)
now compare this to the first equation :
y = 2x + 3
the system has infinite solutions, if both equations are actually identical.
and they are only identical, if b = 1/2
y = x/(1/2) + 3/(2 × 1/2) = 2x + 3
OPTION A , C,D
are the correct choices because all of them are equal to √5
The answer of 9 3/4 as a percent is
9 (900%) plus 3/4 (75%) which equals 975%