Final answer:
Nathan makes snowballs at a faster rate than Tyler, with 1.75 snowballs per minute compared to Tyler's rate of 1.5 snowballs per minute.
Step-by-step explanation:
The question asks us to determine who makes snowballs at a faster rate, Nathan or Tyler. Nathan's rate is 7 snowballs per 4 minutes, which simplifies to 1.75 snowballs per minute (7 divided by 4).
Tyler's rate is described by the equation y = 1.5x, which means Tyler makes 1.5 snowballs per minute.
Comparing the two rates, we see that Nathan makes snowballs at a faster rate than Tyler because 1.75 is greater than 1.5.