Laura’s House is a 20-mile round trip from her school. The supermarket is 10 miles farther away from the school. If Laura drives to school every morning and two afternoons a week drives to the supermarket. How many miles does Laura driver per week?
7 days a week Laura drives 20 miles to school, so Laura drives 7 x 20 = 
<gadget id="calculator">7*20</gadget>
<output>140</output>
140 miles to school in one week.
The supermarket is 10 miles farther away than the school. Therefore the supermarket is 10 + 10 = 
<gadget id="calculator">10+10</gadget>
<output>20</output>
20 miles away from Laura's house.
Laura drives 20 miles each way to and from the supermarket. Each trip is 20 x 2 = 
<gadget id="calculator">20*2</gadget>
<output>40</output>
40 miles.
Laura drives 40 miles twice a week to visit the supermarket. Therefore she drives 40 x 2 =
<gadget id="calculator">40*2</gadget>
<output>80</output>
80 miles in total a week to and from the supermarket.
In total Laura drives 140 + 80 = 
<gadget id="calculator">140+80</gadget>
<output>220</output>
220 miles each week.

<result>220</result>