which of the following
numbers can be rewritten
as a fraction?

6.2, 3 5/7 power of 49, 5

Step-by-step explanation:

6.2 = 31/5

3 5/7 = 26/7

power of 49 = 7/1

5 = 5/1

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.