5 x 4000 step by step for khan

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?