Marcia and tamara are running a race. marcia has run 4 km. tamara has completed 3 4ths of the race and 2.5 km ahead of marcia. write an equation that represents the relationship between the distances each girl has run.

Step-by-step explanation:

The equations for each runner are, respectively:

Marcia

Tamara

Race length

The relationship between each runner is:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.