Answer:
The answer is 30x + 2
Step-by-step explanation:
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:
0.0019, 0.0091, 0.091, 0.55, 0.59, 5.0, 90.5
Answer:
y = 3x + 1
Step-by-step explanation:
(0,1) so that is the b
the rate of change is 9/3 so the m is 3