Find the measure of the indicated arc
Help needed !!i appreciate it

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

What is the number 321,000,000 in scientific notation? also what is the number? ?