Rachel and Sarah started out to visit Grandma. They drove for 50 miles and stopped to rest
before driving for 30 more miles. They decided to go back 10 miles to a restaurant they had seen.
After leaving the restaurant, they drove 80 more miles to Grandma’s house. How many miles did the
girls drive on the way to Grandma’s house?	Pick:
A) 150 miles
B) 160 miles
C) 170 miles
D) 180 miles
E) 200 miles
50 + 30= 
<gadget id="calculator">50 + 30</gadget>
<output>80</output>
80 to turn around   80 + 10= 
<gadget id="calculator">80 + 10</gadget>
<output>90</output>
90 backtrack to restaurant   90 + 80= 
<gadget id="calculator">90 + 80</gadget>
<output>170</output>
170 miles is total distance driven   correct answer 170 miles
<result>C</result>
Rachel and Sarah started out to visit Grandma. They drove for 50 miles and stopped to rest
before driving for 30 more miles. They decided to go back 10 miles to a restaurant they had seen.
After leaving the restaurant, they drove 80 more miles to Grandma’s house. How many miles did the
girls drive on the way to Grandma’s house?