At an ice cream parlor, sugar cones (s) cost $1.75 each and extra toppings (t) cost $0.25 each. Wyatt wants to buy some of both, but has only $8 to spend. Which inequality describes the number of sugar cones and toppings he can buy?

Since sugar cones cost $1.75 each, we will let s = the number of sugar cones purchased.

Since extra toppings cost $0.25 each, we let t = the number of extra toppings purchased.
To determine the inequality for the number of sugar cones and toppings, we can add the total cost of sugar cones and extra toppings and set it equal to the amount Wyatt has to spend.
The total cost of the sugar cones would be 1.75s and the total cost of the extra toppings would be 0.25t, so the inequality is:
1.75s + 0.25t ≤ 8. Answer: \boxed{1.75s + 0.25t \leq 8}.