You are going to use the Pythagorean there on as the two directions make a 90 degree angle.
A^2+B^2=C^2
6^2+9^2=C^2
36+81=C^2
117=C^2
Square root both sides
C=10.82km
C = 9 because its counting by 3’s
I should know this but I guess I don't, try going on x-actoschoolpro.com ;)
Answer:
3.5 miles
Step-by-step explanation:
The actual choices and question is as attached. Since it's shown in a mixed fraction as 
then we convert the number to decimal. \frac {1}{2} will be 1 divided by 2 which is 0.5 hence the distance to Cascade Falls is 3.5 miles
I think the equation is formed wrong, as there is no point in having x-4=x-2 twice.
It has no solution.
