3. MATH Connection Only a small percentage of Americans owned
cars before the 1940s. By 2017, there were nearly 250 million vehicles
for 323 million people, greatly increasing the need for roadways. In 1960,
the United States had about 16,000 km of interstate highways. Today,
the interstate highway system includes 77,000 km of paved roadways.
What percent increase does this represent?
A 381 percent
B 792 percent
C 38 percent
D 79 percent