2/5x + 3/10x + 3y- 8y + 1

7/10x -5y + 1

Step-by-step explanation:

2/5x + 3/10x + 3y - 8y + 1

convert 2/5x into 10ths

4/10x +3/10x + 3y - 8y + 1

7/10x +3y - 8y + 1

7/10x - 5y + 1

idk

step-by-step explanation:

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.