A)<span>calculate the cost of one T-shirt
</span>
Answer:
B. 
Step-by-step explanation:
Well slope-intercept form is
.
Let's start with the slope.
In this case, finding the slope is easy.
It should have a negative slope.
So we can cross out answer choices A. and C.
Also, we can cross out D. because it just makes no sense, -10/3, if you start from the y-intercept and go down 10 and across 3, yeah that's
not the slope.
So we can cross out D.
The only answer choice left is B.
We can tell the y-intercept is 1/2 because like come on so B is the correct answer.
B. 
Answer:
-48/11
Step-by-step explanation:
-2x+5-40-9x-13=0
-11x=40-5+13
-11x=48
x=-48/11
(y-5)=(-3)(x-0)
y-5=-3x
y+3x=5 is the required equation.
but, I dont know why there is so much information in the pic. more than what is required.
The simplified form of the equation is 4.4x + 1.5.
Given
Equation; (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x)
<h3>Addition</h3>
The addition is the process of adding things together.
To simplify the equation follow all the steps given below.
First, open the brackets combine like terms, and simplify.
Then,
The equation in simplified form is;

Hence, the simplified form of the equation is 4.4x + 1.5.
To know more about addition click the link given below.
brainly.com/question/15892196