Why in the world did I have nearly 800 points worth of questions deleted? Every single one of them were right! What do I do now?

Which of the following pairs of functions are inverses of each other? o a. f(x)=x72+8 and 96-9 = 7/x+2) =8 o b. f(x)= 6(x - 2)+3 and g(x) - *#2-3 o c. $4) = 5(2)-3 and 90- 4*: 73 o d. f(x) = 6)-12 and 910 – +12

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Find the slope of the line passing through a pair of points