Cynthia drove 288 miles in 4 1/2 hours. what was her speed in miles per hour?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

Percent increase and decrease. original number: 45 new number: 18