Xiao Ming drinks a bottle of milk every morning for 1.5 yuan, and his father drinks a cup of soy milk for 1.0 yuan every morning. How much do the two of them spend on soy milk in a week?
小明每天早上喝一瓶牛奶要1.5元，他爸爸每天早上喝一杯豆浆要1.0元，他们两个人一个星期要花多少钱喝豆浆牛奶？
<gadget id="calculator">1.5 + 1</gadget>
<output>2.5</output>

<gadget id="calculator">2.5 * 7</gadget>
<output>17.5</output>

<result>17.5</result>