*** ***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 total amount of money raul will make from selling x coupon books as represented by a function. f(x) = 20xwhat is the practical domain of the function? a) all real numbers b) all multiples of 20 between 0 and 1000, inclusive c) all integers from 10 to 50, inclusive d) all integers from 0 to 50

c) All integers from 10 to 50, inclusive

Step-by-step explanation:

Rauls is selling coupon books.

He started with 50 coupon books and has already won a prize for selling at least 10 coupon books. It means He has a maximum value of 50 coupons and he already sold 10 coupons.He can sell from 10 coupons to 50 coupon books.

The total amount of money Raul will make from selling x coupon books as a function is

f(x) = 20x

The domain of this function is all Real numbers. However, we need a practical domain.Coupon books are integer numbers, 1, 2, 3 we will not have a half book. So, Coupon right now can vary from 10 coupon books to 50 coupon books. It means x can vary from 10 to 50, only integer values and inclusive 10 and 50.

Finally, the answer is C) all integers from 10 to 50, inclusive. 

a

step-by-step explanation:

a

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