Evaluate 2a-5b-3a for a=-2 and b=5 a. -23 b. 27 c.-35 d-15

What is this inequality notation? t is less then or equal to 2

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

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?