Answer:
Original size of population containing fruit files = 10 files
Rate at which population of fruit file is increasing = 22.5%
New population of fruit files having initial population of 10 files and increase rate of 22.5% is given by =
10 + 22.5 × 
= 10 + 22.5 × 
= 10+ 2.25
= 12.25 files
Answer:Since both terms are perfect squares, factor using the difference of squares formula,
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
a
2
-
b
2
=
(
a
+
b
)
(
a
-
b
)
where
a
=
2
x
a
=
2
x
and
b
=
3
b
=
3
.
(
2
x
+
3
)
(
2
x
−
3
)
Step-by-step explanation:


Answer: $2000 dollars worth of zinc is contained in cut hair in the United States every year.
Hope this helps. - M