Complete 2,3 for 38 points.

see below

Step-by-step explanation:

factors of 75 are 1,75,3,25,5,15

also 75 = 3*5*5

2.  The number is 75 :-

2  No, not a factor of 75

3 Yes, a factor of 75

4 No, not a factor of 75

5 Yes, a factor of 75

6 No, not a factor of 75

8 No, not a factor of 75

9 No, not a factor of 75

10 No, not a factor of 75

25 Yes, a factor of 75

3. The number is 42 :-

factors of 42 are 1,42,2,21,3,14,6,7

also 42 = 2*3*7

2 Yes, a factor of 42

3  Yes, a factor of 42

4 No, not a factor of 42

5 No, not a factor of 42

6 Yes, a factor of 42

8 No, not a factor of 42

9 No, not a factor of 42

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