40 people from class 1, grade 6, took a group photo for graduation, priced at 15 yuan, and 4 photos were given, and an additional photo was 1.5 yuan. Everyone in the class wants a photo, how much is the total payment?
六年级1班40人照毕业合影，定价15元，并给4张照片，另外加洗一张照片是1.5元．全班每人要一张照片，共付多少元？
<gadget id="calculator">40 - 4</gadget>
<output>36</output>

<gadget id="calculator">36 * 1.5</gadget>
<output>54</output>

<gadget id="calculator">54 + 15</gadget>
<output>69</output>

<result>69</result>