On a bicycle, Nadine rides for 5 hours and is 66 miles from her house. After riding for 7 hours, she is 90 miles away.

What is Nadine's rate? miles per hour  

How far away from her house did Nadine start riding? miles  

Write an equation to model this situation (use d\displaystyle {d} for distance from her house in miles and h\displaystyle {h} for hours).