What is the value of x3+y3 when x=3 and y=4

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

Name the most appropriate metric unit for each measurement like the mass of cow

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap