1. While on the highway, you set the cruise control to 100 km/hr. After traveling 20 km, it starts to slow and reduce the speed to 60 km/hr, which maintain until you reach the nect gas station. If the trip takes 48km, in total, distance travelled is equal to?

2. a triangle has h=3,000 cm and b= 5.00 cm. The 0 rounded to the appropriate number of significant figures:

a. 31

b. 30.96

c. 31.0

d. 30

e. 30.964