Can someone helps me linearise the equation (y=mx+c) where tan theta=x, I=y

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

cant without the picture! ?

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