Which labels belong in the areas marked X, Y and Z x is convex lens

Y is both

Z is concave lens

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

a skateboard rolling across the street - apex

god i hope this !

answer( sicar );