I’m so annoyed I literally always give my friends the homework answers and now they don’t want to do the same

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?