Amoving company charges a $2,000 fee plus $100 per hour. another moving company charges an $1,800 fee plus $150 per hour. how long is a job for which the two companies' costs are the same?

Three coins are flipped. what is the probability that there will be at least two tails?

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?