Someone plz help me with this

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Which of the following circles have their centers in the third quadrant? check all that apply.