Final answer:
Amy made 63 hats, which is 9 times as many hats as Kevin made. To find the number of hats Kevin made, we can write the equation 9h = 63 and solve for h. The value of h is 7, so Kevin made 7 hats.
Step-by-step explanation:
To write an equation relating the number of hats that Amy made to the number of hats that Kevin made, we can use the given information. It is stated that Amy made 63 hats, which is 9 times as many hats as Kevin. So, if we let h be the number of hats that Kevin made, we can write the equation 9h = 63. To find the value of h, we can divide both sides of the equation by 9. This gives us h = 7. Therefore, Kevin made 7 hats.