i think its b correct me if im wrong
<u>Answer: </u>
Simplified form of given expression (2x – 9 )( x + 6 ) is 
<u> Solution:
</u>
We need to simplify following expression.
(2x – 9) ( x + 6)
For sake of simplicity lets first assume 2x – 9 = A
So expression becomes A(x+6)
= Ax + A6
Now replace A by 2x – 9
= (2x – 9 ) x + (2x – 9 ) 6

On simplification, we get

Hence simplified form of given expression (2x – 9 )( x + 6 ) is 
Answer:
6
Step-by-step explanation:
Multiply 7x+3 by 2. When you get 14x+6, set equal to 90 and solve for x.
Answer:
48
Step-by-step explanation:
8x3x2= 48
Answer:
A)
- Linear
B)
- Linear
C)
- Nonlinear
Step-by-step explanation:
To determine whether a function is linear or nonlinear.
The function of a straight line is given as :

where
represents slope of line and
represents the y-intercept.
Any function that can be represented as a function of straight line is called a linear function otherwise it is nonlinear.
We will check the equations given for linear or nonlinear.
A) 
The function is in the form
and hence it is a linear function with slope
and y-intercept
.
B)
The function is in the form
and hence it is a linear function with slope
and y-intercept
.
C) 
On solving for 
Dividing both sides by 


This function cannot be represented in the form
, hence it is a nonlinear function.