a recent study shows that people spend about 31% of their time asleep. About how much time will a person spend asleep during an average of 78-year lifetime

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.