PLEASE HELP WILL GIVE BRAINLIEST Suppose f(x)=x^2-2 find the graph of f(1/2x)

I’m confused on how to work the pie charts

How much would it be worth in 5, 10, 20 years

Renee hiked for 6 3/4 miles. after resting, renee hiked back along the same route for 5 1/4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.