Manny walked a total of 3 miles. the reference point used to calculate the total distance that he walked was the same as the ending point.

which describes where manny most likely walked?
a. from the bottom of a hill to the top
b. on a circular nature trail
c. on a sidewalk from his house to the mail
d. from the beginning of a straight track to the end

The correct answer is B on a circular nature trail.

We can tell this because the reference point at the start and end was the same because in a circular path the starting and ending are always at the same point.

In other case such as from bottom of the hill to the top the reference point can not be the same.

Similarly the reference point can not be the same for the starting and ending on the side walk or the straight track.

it is B

Explanation:

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?