What is the eighth term of the geometric sequence 6, 18, 54

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)

Atown has a population of 7000 and grows at 3% every year. to the nearest year, how long will it be until the population will reach 12400?