Answer:
y = -2x + 2
Step-by-step explanation:
The equation of a line is y = mx + b.
First we want to find m, the slope. We can used the coordinates to do so: 
Now we know that the equation is y = -2x + b. We can plug in the coordinate (3, -4) to find b.

So the equation is y = -2x + 2.
Answer:
10.5
Step-by-step explanation:
Area is length times width so, 3.5 times 3 equals 10.5. 10.5 is the area of the given figure.
PLZ MARK BRAINLIEST!!! HOPE THIS HELPS!!!
Answer:
Option (b) is correct.
The profit from sales if the price of the T-shirts were $15 a pieces is $28.
Step-by-step explanation:
Given : The function
is used to determine the profit on T-shirts sold for x dollars.
We have to find the profit from sales if the price of the T-shirts were $15 a pieces.
Consider the given profit function 
For the profit, if the price of a t-shirt is $ 15
Put x = 15, we have,

Simplify, we have,

Also, 
Thus, we get, The profit from sales if the price of the T-shirts were $15 a pieces is $28.
Answer:
<h3>
x=60</h3>
Step-by-step explanation:
5=k×
k=180
3=180×
x=60