Answer:
Step-by-step explanation:
you combine like terms and set equal to zero you get 
then subtract the 10 and divide by 50 it would give you a 
which simplifies to be 
Y=2.5x+30 - the function where y = the total cost and x = the # of notebooks.
40 = 2.5x + 30 - Plug 40 into y and solve
10= 2.5x
x = 4, the number of notebooks she bought
Answer: -56 or b.
Step-by-step explanation: -6+(-73)=-79 because the negative number means minus.
-79+(positive)56=-23 because a negative number plus a positive number is adding the positive number meaning you subtract but keep the negative sign
-23+(-33)=-56 because the negative number means minus
I don't know how to explain that is just kind of how it works.
But here's something for the future.
Positive+(Negative) is minus
Positive+Positive is plus (duh)
Negative plus negative is minus (or add but theres a negative sign)
Negative-negative=plus (idk why but its meth)
Answer:
6
Step-by-step explanation:
This is a linear function, so there is NO asymptote. The slope is 2 and the y-intercept is 4. Since this is a polynomial, the domain is "the set of all real numbers," and the range is also that.
