Which of the following questions could be used to represent the equation 4 · x = 28?

What number when multiplied by 28 is equal to 4?

The product of 4 and what number is equal to 28?

The quotient of 4 and what number is equal to 28?

What number when added to 4 is equal to 28?

Starting with the bottom one (4), we get addition, so that's a no. The third one includes division, so no. Next, we have the product. That's multiplication, so is asking 4 multiplied with what number equals 28? which is the equation. For the first one, it's multiplied by 28, but no multiplication by 28 is in the original equation