Could a very kind person help another kind person with this problem please:)

x = 12 cm

Step-by-step explanation:

The two pentagons are similar. By looking at corresponding sides, we can see that the sides of the smaller pentagon are 1/2 the length of their corresponding side on the bigger pentagon. So 6 units on the smaller pentagon would be 12 units on the larger pentagon.

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.