1. Mr. Jackson drove 40 miles in his new car on Friday and 44 miles on Tuesday.  How many miles did he drive in these two days?   2. There are 6 buses and 20 trucks in a parking lot. How many vehicles are there in the parking lot?   3. There are 15 men and 4 women in an aeroplane. How many passengers are there altogether?   4. Warren is a mechanic. He repaired 43 vans and 12 cabs last month. How many vehicles did he repair altogether?   5. Mrs. Smith used 9 gallons of fuel last week. She used 3 gallons this week. How many gallons of fuel were consumed in the two weeks?