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Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?