Express each statement in logic using the variables: p: It is windy. q: It is cold. r: It is raining. (a) It is windy and cold. (b) It is windy but not cold. (c) It is not true that it is windy or cold. (d) It is raining and it is windy or cold. (e) It is raining and windy or it is cold. (f) It is raining and windy but it is not cold.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

27

step-by-step explanation:

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