A student determines the average speed of a bubble rising through a liquidat constant speed When the student starts the stopwatch the bubble is at position P.
After 20s the bubble is at position Q.
bubble
18
19
20
21
22
23
24
25
OP
.
26
cm
27
bubble
What is the speed of the bubble between P and Q?
A 32 cm/s
B 3.7 cm/s
C 6.4 cm/s
D 7.4cmis

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

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