Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_84 (erp_w VARCHAR, class VARCHAR, call_sign VARCHAR)
### Question:
ERP W that has a Class of d, and a Call sign of k299ar is what total number?
### Answer:
SELECT COUNT(erp_w) FROM table_name_84 WHERE class = "d" AND call_sign = "k299ar"