I think the answer is 9...............
1. (4,1) is not a solution because when u sub it into the equation, it does not come out correct. It would be correct if it was (1,4).
2. C = 2.50d.....where C is the cost and d is the number of drinks bought. And if u pick any number for d, then u can solve for the cost (C).
Answer:
The degree is 7 and the leading coefficient is -21.
Step-by-step explanation:
The degree of an equation is found using the highest exponent on the variable in the equation.
-12-8x^2+5x-21x^7 has the term x^7 so its degree is 7
The leading coefficient is the coefficient of the term with the highest degree. The coefficient of x^7 is -21.
