Definition of Dependent Variable. Dependent Variable is a variable whose value depends on the values of one or more independent variables. In p = 4q, p is the dependent variable, because its value depends on the value of q.
Back in five minutes. Walmart's No Receipt policy applies to items returned in a store only. When you return an item without a receipt, you have the option of receiving a cash refund (for purchases under $25), a Gift Card for the amount of the purchase (for purchases over $25) or making an even exchange for the product. You should be good to go. StickMane and ghj like this.
Apart from electronics, Walmart has a pretty liberal no-receipt return policy, as big retailers go. However, they do limit you - specifically, you, identified by your driver's license number - to three per twelve months. Electronics are problematic for retailers - things often leave the store working OK and get returned broken due to mis-use.