What is the next value 23E45I68

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.