Jim has 100 cards.
There is a whole number from 1 to 100 on each card.
No cards have the same number.
Jim puts a star on every card that has a multiple of 3 on it.
He puts a circle on every card that has a multiple of 7 on it.
What numbers are on the cards that have both a star and a circle on them?
The final line of your answer must list only these numbers.
Total marke 3

What grade of math is this?

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.

its the fourth option