Urgent! Use the 3-step definition of continuity to discuss the continuity (precalc problem) Thank you!

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?