Question

9.
86
-
[
15x
-
7
(
6x
-
9
)
-
210x
-
512
-
3x
)
?
10.
12x
-
(
3x
+
5x
-
{
7x
-
[
4
-
3x
-
X
°
)
+
6x
)
-
3xl
11.
5a
-
la
"
-
2a
(
l
-
a
+
4a
"
)
-
3ala
-5a
-
3
}
}
-
sa
12.
3
-
x
-
2y
-
(
5x
+
y
-
3
)
+
2x
)
-
(
x
-
3yll
13.
xy
-
lyz
-
zx
-
{
yx
-
(
3y
-
x2
)
-
xy
-
zyli
14.
2a
-
3b
-
[
3a
-
2b
-
{
a
-
C
-
la
-
2b
)
15.
-a
-la
+
(
a
+
b
-
2a
-la
-
2b
)
)
-
b
]
Algebraic Expressions
16. 2a - 14b - {4a - (35 - 2a + 2b
17. 5x - 14y - 17x - (32 - 2y) + 4z - 3x + 3y - 221​

Answer 1

The process by which green plants and some other organisms use sunlight to syrhesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product

Answer 2

sorry, the question is not clear.