PLS HELP WORH THE LAST ONE TYSM PLS ANSWER WITH AN EXPLANATION TYSM

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

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?