The post office is at the corner of first street and main street, which forms a right angle. first street intersects with oak street to the north, and main street intersects with oak street to the east. the intersection of main street and oak street forms a y° angle, and tan y° = 5/7. car a drives on main street for 14 miles to arrive at oak street. how far will car b have to travel on first street to get to oak street? round your answer to the nearest tenth of a mile.
a. 5 miles
b. 7.4 miles
c. 10 miles
d. 19.6 miles