Pls help i really need it asap

Blank 1 = -1

Blank 2 = 2

Blank 3 = 4

Blank 4 = 7

Blank 5 = 79

Step-by-step explanation:

Blank 1 has an input of 1 we have to square 1

1 squared = 1

Then we subtract 2

1 - 2 = -1

Blank 2 has an input of 2 we have to square 2

2 squared = 4

Then subtract 2

4 - 2 = 2

Blank 3 has an output so we have to do the opposite of what we would for an input

Blank 3 has an output of 14 so we add 2

14 + 2 = 16

then we have to do the square root

The Square root of 16 = 4

So the input was 4

Blank 4 has an output of 47

47 + 2 = 49

The square root of 49 = 7

So the input was 7

Blank 5 has an input of 9

9 squared = 81

81 - 2 = 79

So the output is 79

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