A motor boat and a raft start traveling downstream. After 1 hour, the boat turns around and travels back until it reaches the raft. a What amount of time does it take the boat to reach the raft after it turns around?

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?