8 An aquarium is being filled with water. The graph shows the height of the water over time as
the aquarium is being filled.
Aquarium
20
15
Height (inches)
10
5
8
9
0 1 2 3 4 5 6 7
Time (seconds)
Which statement best describes the rate of change for this situation?
A The height of the water increases 20 inches per second,
B The height of the water increases 1 inch per second.
The height of the water increases 5 inches per second.
D The height of the water increases 2.5 inches per second.

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit