Amy is planning the seating arrangement for her wedding reception. each round table can sit 12 guests. the head table can sit the bride and groom with the 6 wedding attendants. if amy expects 186 to 306 guests to attend her wedding, including the attendants, what is the range for the number of round tables she will need for her reception?
a. 15 to 25
b. 21 to 31
c. 16 to 26
d. 20 to 22

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

bfgbh bhf gfdzf bhgfrdfgbn cvdgsytrghvn ncvhgfdtrseawa hgdrsxcvbgfrewq

step-by-step explanation:

b is the right answer