Answer:
a:45
b:8
might be wrong. hope it helps
The airplane travels 200 mph
Answer:
It’s an expression.
Step-by-step explanation:
An expression is technically an equation but without the answer.
Answer:
Option 3.
Step-by-step explanation:
The given function is
![f(x)=20x](https://tex.z-dn.net/?f=f%28x%29%3D20x)
where, x is number of coupon books.
We have to find the practical domain for the given function.
Domain : The set of input values is called domain.
It is given that Raul is selling coupon books. He started with 50 coupon books and has already won a prize for selling at least 10 coupon books.
The number of coupon books can not be a decimal or fraction value. It means the values of x are integers.
The value x is all integers from 10 to 50.
Hence, the correct option is 3.