Pencils cost $1.75 at the back-to-school sale (they are super cool pencils). You already spent $2 on a journal for your math class. You have $23 total to spend. How many
pencils can you afford?

Step-by-step explanation:

1.75×13

=22.75

that means You can afford 13 pencils

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.