Which is true about what models allow us to do to the system being studied? A)
Models are more accurate.
B)
Models are more waste of natural resources.
C)
Models require more scientists to study a system.
D)
Models allow many systems to be studied more than before there were
models.

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

helium

oxygen

neon

sodium