Ineed these problems are causing me trouble

The gilbert's are designing a rectangular patio. the patio has an area of 24 square feet. the width of the patio is 3/4 it's length. what is the length of the patio

Point $(x,y)$ is randomly picked from the rectangular region with vertices at $(0,,,2010),$ and $(0,2010)$. what is the probability that $x > 7y$? express your answer as a common fraction.

Asmall foreign car gete 42 miles per gallon and user 35 gallons on a trip.gasoline costs $1.05 per gallon.what was the cost of gasoline per mile driver?