At 4 o clock, devon called 6 friends to let them know that the weather forecast called for snow. At 6 o clock, each of his friends called 6 other friends. At 8'o clock, each of those friends called 6 of their friends.
Write an expression to represent the number of people called at 6 o clock using a base and exponent.
Write an expression to represent the number of people called at 8 o clock using a base and exponent.
how many people were called in all? explain.