63
.10d + .05n = 5.25
.10(21) + .05n = 5.25
2.1 + .05n = 5.25
.05n = 3.15
n = 3.15/.05
n = 63
Given:
FG=5x+2
GH=3x-1
FG=9
Let us draw the line segment as follows,
Equating the length of FG, we get,

Substitute the value of x in the given value of GH,

And the total length FH is,

Hence, the lengths are,
Answer:
2.8888888888889
Step-by-step explanation:
I hope this helps
Irrational kind of means something can't be dealt with, for example, you cannot divide irrational numbers. Rational is something that you can do and will be good to work with, you can divide rational numbers.