17. jing has some square tiles he joins the tiles to make a rectangle. there are stiles a re tiles. he joins the tiles to make a rectangle. there are 8 tiles along the length of the rectangle and 9 tiles along the width of the rectangle. what is the total number of tiles that jing uses to make the rectangle?

72 Tiles.

Step-by-step explanation:

Multiply 8 by 9.

8*9=72

Good luck please mark me brainliest

2x^2+5x+17

your welcome. : )

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