Nancy's 50-meter freestyle swim time was 28.004 seconds. betty’s 50-meter freestyle swim time was 27.949 seconds. what was the difference between nancy's and betty's swim times?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

What is the value of x in the this question ?