Aliving room is 15 feet long and 12 feet wide. what is the area of the room in square feet? if john wants to cover it with 12 inch square tiles. how many are needed?

180 sq. ft he would need 180 tiles because 12 inches is converted to one foot.

to find area of a rectangle or sqare you take lenght(long) times the height(width)

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

6 and 24

step-by-step explanation:

6 x 4 = 24