I can not figure out how to come up with this IF formula in Microsoft Excel can someone please help me and show me how it's suppose to look???

I can not figure out how to come up with this IF formula in Microsoft Excel can someone please help me and show me how it's suppose to look??? I know how to make it say True or False but can't figure out this question . D19>0 ????? lost from there

1. In cell F19, enter an IF function that tests whether the order quantity in cell D19 is greater than 0 (zero). lf it is, return the value of the Qty (in D19) multiplied by the Unit Price (in E19); otherwise, return no text by entering "".