If a bird flap swings up and down 50 times in 20 seconds what is the frequency of its flapping?

the answer is mosques. they are an important part of islamic culture.

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