True or False: 8. V 40 has an infinite non-repeating decimal expansion.
9. The number 0.56 is a rational number
10. 200 and 500 are integers.
11. All numbers with infinite decimal expansions are irrational.
12.
the numbers -8, -3, 5, 17 are all whole numbers.

Below.

Step-by-step explanation:

8.  True ( all numbers of the form √n where n is not a perfect square have this property)

9.  True  ( we can write it as 56/100 or 14/25).

10. True.

11.   False. ( 1/3 is rational and its decimal form is 0.333 )

12.  False. ( negative numbers are not whole numbers).

$6.42

step-by-step explanation:

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4