Match each pair of polynomials to their sum. 12x2 + 3x + 6 and -7x2 – 4x – 2 -2x – 2 2x2 – x and -x – 2x2 – 2 2x2 x3 + x2 + 2 and x2 – 2 – x3 2x2 + 9x – 2 x2 + x and x2 + 8x – 2 5x2 – x + 4

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !