marcy takes one medicine every 4 hours and take the other medicine every 6 hours and she takes both medicines at 9:00 what time does she take both medicines.

Jonas had 40 more pencils than Lisa. After Lisa gave away 20 pencils, Jonas had four times as many pencils as Lisa. How many pencils did Jonas have at first?

Karla picks up her friend who lives in another city and they head north on a road trip. Karla looks at a map and sees that after 5 hours of driving, they are passing mileage marker 352 on Highway 277. After driving for 12 hours, they pass mileage marker 842. What is Karla's average rate during the road trip? miles per hour